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-   -   No Limit Trailing Arm Rear Suspension (https://67-72chevytrucks.com/vboard/showthread.php?t=699646)

SierraMtns 06-13-2016 04:54 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by robnolimit (Post 7506790)
This truck already had a bolt-in notch. Now, lets talk about that. Shame on the aftermarket. Shame on them for helping you cut into your truck for no reason. ??? OK, the frame is approximately 4" tall (rail height), keep that in mind. Also, the rear gear housing is about 4" above the top of the axle tube. (top of center chunk to top of axle tube. So, if you pull the bump stops, and the axle travels up to hit the bottom of the frame, the top of the center section (gear housing) is even with the top of the frame. Are you with me so far? Now realize that the OE bed floor is .75" above the top of the frame. (Or worse, even with it if it's a wood floor). So, if the axle travels up more than 3/4" into the notch, WHAMMO, it hits the bed floor. So, if your keeping the OE bed floor, a 1" notch with a side mounted bump stop is all you need, and you wouldn't cut the frame so much.OK, I know some of you want it lower, and will cut a hole in the bed floor, but that's not what we're doing here. Please think about the notch thing before you cut.

We are working on a notch kit with bump-stops included, but the forming match may take another two months. We are not going to include bolt-in C notches with this kit. We will have them available separately. But, sincle so many trucks are already notched, we are not going to force you to buy something that you don't need, or don't want.

Quote:

Originally Posted by crakarjax (Post 7623851)
Why not just any other notch? Isn't the panhard specifically designed to work with the CPP notch?

I would like to keep as much of frame as possible. No reason to cut more out when its not needed.

robnolimit 06-14-2016 12:53 PM

Re: No Limit Trailing Arm Rear Suspension
 
Looks great! We are now stress testing a few versions of a notch brace. I know that no one else has done this, as we are testing a few others as well. Load stress of mod rails vs. OE rail. Twist, vert. and horiz. loads. Probably 30 days to production unit.

crakarjax 06-14-2016 02:01 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by robnolimit (Post 7624791)
Looks great! We are now stress testing a few versions of a notch brace. I know that no one else has done this, as we are testing a few others as well. Load stress of mod rails vs. OE rail. Twist, vert. and horiz. loads. Probably 30 days to production unit.

You're going to give us the raw data on that, right? :)

SierraMtns 06-14-2016 11:23 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by robnolimit (Post 7624791)
Looks great! We are now stress testing a few versions of a notch brace. I know that no one else has done this, as we are testing a few others as well. Load stress of mod rails vs. OE rail. Twist, vert. and horiz. loads. Probably 30 days to production unit.

Thats great news.

I'll email Jessica now to get my name on the list for the first ones.

Thanks

SierraMtns 06-15-2016 09:09 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by robnolimit (Post 7624791)
Looks great! We are now stress testing a few versions of a notch brace. I know that no one else has done this, as we are testing a few others as well. Load stress of mod rails vs. OE rail. Twist, vert. and horiz. loads. Probably 30 days to production unit.

Any idea what the price range might be on the notch?

CarbonRight 06-23-2016 09:32 AM

So there is about a $350 difference between this setup and the fatbar when they are both using Ridetech shocks. What are the advantages of going with this vs your fatbar setup?
Posted via Mobile Device

robnolimit 06-24-2016 09:37 AM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by CarbonRight (Post 7633063)
So there is about a $350 difference between this setup and the fatbar when they are both using Ridetech shocks. What are the advantages of going with this vs your fatbar setup?
Posted via Mobile Device

Fair question. It's really kind of "Apples vs. Oranges". We wanted to do an actual 'Bolt-in' rear upgrade for a long time. So, the Trailing arm kit was developed. The extra cost mostly has to do with the extra hardware cost in the arms, monster balls, and hardware for the panhard rod. On the plus side, this kit can be installed in a day, with a grinder, a drill, and a Craftsman tool kit. Now, if you have a torch or plasma cutter to help with the rivets, it can be done a lot faster. But, no welding at all.
The Fatbar was originally designed for 55-59 Chevs and 53-56 F100s. (sorry for the F word) And, over the years, we tuned on the design to get the best ride and handling we could from a classic truck. It's advantage when compared to the O.E. trailing arm was in Instant Center location/tuning, and the lack of binding during articulation. (we didn't have Monster balls back then) But remember, the Fatbar has parts that MUST be welded to the axle housing. Thus, the install takes a little longer, and requires more tools and skill.
In head to head competition, the Fatbar may win out due to it's ability to launch and exit the corner. On the road, the trailing arm may be a little more compliant due to it's longer travel. As for cost, an increase in hardware offsets some addition labor to install. Take your pick, it's a Win-Win.

SierraMtns 06-24-2016 05:08 PM

Re: No Limit Trailing Arm Rear Suspension
 
Has anyone figured out which diff covers fit with the panhard bar?

http://i483.photobucket.com/albums/r...psbn8c7mjn.jpg

SierraMtns 07-03-2016 12:59 AM

Re: No Limit Trailing Arm Rear Suspension
 
Hey Rob,

Any pictures of the c-notch?

SierraMtns 07-17-2016 06:14 PM

Re: No Limit Trailing Arm Rear Suspension
 
Hey Rob,

Any updates on the c-notch?

Thanks

robnolimit 07-19-2016 01:20 PM

Re: No Limit Trailing Arm Rear Suspension
 
Getting close. matching the bends to fit the OE rail is harder than it looks. We should have formed parts next week. Fixtures and press jigs are ready. - It won't be long.

gringoloco 07-20-2016 11:13 PM

Re: No Limit Trailing Arm Rear Suspension
 
Cool stuff here. Any updates/opinions from those who have purchased?

TTurbo565 07-27-2016 01:16 PM

Re: No Limit Trailing Arm Rear Suspension
 
Hey Chris. I purchased and installed the kit with the Ridetech three way adjustable shocks from Rob a couple of months ago. I have a 72 Chevy long bed that is pretty much stock except for the suspension and wheels/tires. I removed the bed for the installation and everything went pretty smooth. Drilling out the stock rivets is the worst part of the job. Everything is great quality, and with a little careful measurement, my truck didn’t require any adjustments in the rear for a perfect four wheel alignment. I haven’t had a chance to put it through the paces on a track, but the ride and handling is amazing. I had to add more clearance to the inside wheel houses to accommodate the 345/19X12 wheels and extra axle articulation for street driving, but the axle tracks the pavement really well and the rear axle hop/oversteer of death is greatly reduced. Rob did a great job!!

crakarjax 07-28-2016 04:00 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by TTurbo565 (Post 7666184)
Drilling out the stock rivets is the worst part of the job.

I tried every method of removing rivets and let me tell you, the $300 you'd spend on a cheap plasma cutter is so worth it -- you can shave the head off a rivet in about 10 seconds and then punch it out.

SCOTI 07-28-2016 04:40 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by crakarjax (Post 7667307)
I tried every method of removing rivets and let me tell you, the $300 you'd spend on a cheap plasma cutter is so worth it -- you can shave the head off a rivet in about 10 seconds and then punch it out.

Same thing w/a quality air chisel vs a cheap one. I struggled on rivets w/a new Craftsman unit. Upgraded to a Snap-On . . .... night & day difference.

gringoloco 07-29-2016 10:55 AM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by TTurbo565 (Post 7666184)
Hey Chris. I purchased and installed the kit with the Ridetech three way adjustable shocks from Rob a couple of months ago. I have a 72 Chevy long bed that is pretty much stock except for the suspension and wheels/tires. I removed the bed for the installation and everything went pretty smooth. Drilling out the stock rivets is the worst part of the job. Everything is great quality, and with a little careful measurement, my truck didn’t require any adjustments in the rear for a perfect four wheel alignment. I haven’t had a chance to put it through the paces on a track, but the ride and handling is amazing. I had to add more clearance to the inside wheel houses to accommodate the 345/19X12 wheels and extra axle articulation for street driving, but the axle tracks the pavement really well and the rear axle hop/oversteer of death is greatly reduced. Rob did a great job!!

Thanks for the review, and welcome to the board!
Quote:

Originally Posted by crakarjax (Post 7667307)
I tried every method of removing rivets and let me tell you, the $300 you'd spend on a cheap plasma cutter is so worth it -- you can shave the head off a rivet in about 10 seconds and then punch it out.

Must find one of these $300 plasmas
Quote:

Originally Posted by SCOTI (Post 7667337)
Same thing w/a quality air chisel vs a cheap one. I struggled on rivets w/a new Craftsman unit. Upgraded to a Snap-On . . .... night & day difference.

So true. The HF air chisel will get it done, but you'll be there all day

crakarjax 07-29-2016 01:19 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by gringoloco (Post 7668015)
Must find one of these $300 plasmas

This is the one I have, it's $290 now or $260 through warehouse deals:

Lotos Plasma LT5000D

gringoloco 08-10-2016 11:08 AM

Re: No Limit Trailing Arm Rear Suspension
 
Any provisions for e-brake cables on the arms?

robnolimit 08-10-2016 04:35 PM

Re: No Limit Trailing Arm Rear Suspension
 
We did not put any cable mounts on the arms fot the OE style cable. Currie and others have bolt-on tabs that can be used. When running Wilwood, or other aftermarket disc set ups, custom cables can be made for you at www.controlcables.com We run the cables through the arm, notice that they are ported on the top/front and side/rear for cable housings.

SierraMtns 08-10-2016 11:43 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by gringoloco (Post 7679165)
Any provisions for e-brake cables on the arms?

I was hoping to run stock brake drums however the OE e-brake cable runs right into the coilover. So I went with Camaro calipers and CaptainFab brackets. My plan is to use the stock Camaro cables and run them right along the trailing arms like the stock ones. The Camaro cables are strong and well built. I only paid $20 for them at pick-n-pull.

http://i483.photobucket.com/albums/r...ps4me5dzdf.jpg

http://i483.photobucket.com/albums/r...psvyiekxkp.jpg

http://i483.photobucket.com/albums/r...pspdk1b586.jpg

SierraMtns 08-10-2016 11:48 PM

Re: No Limit Trailing Arm Rear Suspension
 
Rob, someone is getting ready for a WideRide frond end....;)

http://i483.photobucket.com/albums/r...pspodm6evl.jpg

gringoloco 08-12-2016 05:17 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by robnolimit (Post 7679427)
We did not put any cable mounts on the arms fot the OE style cable. Currie and others have bolt-on tabs that can be used. When running Wilwood, or other aftermarket disc set ups, custom cables can be made for you at www.controlcables.com We run the cables through the arm, notice that they are ported on the top/front and side/rear for cable housings.

Clean! I like

Stickman 08-13-2016 01:43 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by SierraMtns (Post 7656126)
Hey Rob,

Any updates on the c-notch?

Thanks

X2 Anything going on with the notches ?
Thx
Kirk

robnolimit 08-15-2016 03:04 PM

Re: No Limit Trailing Arm Rear Suspension
 
Finishing the first run of Notch kits today. Picts up soon.

moregrip 08-15-2016 05:20 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by robnolimit (Post 7506723)
We have had so many ask about this, and it was a tough call in some ways to go ahead with this project. I would like to explain that. At No Limit, we are focused on performance suspension. We have never claimed to build the lowest, the 'showy-est' or the lowest price. We focus on the best ride and handling. There are other great builders of the lowest ride, and you should steer clear of the low price crap.

We have the FatBar 4-bar rear for C10's, and it's great. Ask anyone running one. Smitty proved it's ability beyond any doubt. We have the custom 3-link, like the one Wes D. runs and it's a short course killer. Now both of these are great, but they do require welding and fitting, and the three link must use a Ford 9". Then we have a shock mount kit, panhard kit and sway bar for OE C10 rear suspensions as bolt-on upgrades. These work very well to enhance the original truck, but there are some shortcomings.

We also took the time to study what others are offering, as there isn't really any reason to duplicate something that's already available. The big problems are as follows; 1)Limited travel forcing a stiff ride, mostly due to short shocks and poor location. 2)Rigid, fixed front bushings that limit the axle articulation - OE arms twist, tubular arms don't. 3) High roll center that limits the side bite available, forcing the truck to be 'loose'. 4) Limited clearance for exhaust. With this in mind, the goal was to produce a bolt-in kit with none of the shortcomings of the current marketplace.

Love this kit! When is the 73-87 version coming out? :metal:

gringoloco 08-16-2016 12:08 PM

Re: No Limit Trailing Arm Rear Suspension
 
What anti-sway bar works with this kit? Is it just the hotchkis blade style? Looks like your top mount *might* work. Looking forward to notch updates

bluex 08-16-2016 02:06 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by moregrip (Post 7684173)
Love this kit! When is the 73-87 version coming out? :metal:

See post #104 he addressed it there and basically says no, since there is welding involved a 4-link would be a better option. You could avoid welding by using a 71/72 rear axle though. I asked him to elaborate on why the trailing arms would be a bad idea in a square but Rob's a busy man so his earlier answer was all he said on the subject.

Your options for trailing arms on a 73-87 are CPP or Porterbuilt, maybe hotrods to hell if they are still around.

SierraMtns 08-21-2016 11:40 PM

Re: No Limit Trailing Arm Rear Suspension
 
2 more days and the c-notch will be here.... Monkey junk ;)

vtekdis 08-25-2016 04:15 PM

Re: No Limit Trailing Arm Rear Suspension
 
Rob, I know you guys install 9 in floaters on your frames and would like to have one on my truck. Is there any chance you could sell the rear end prepped for this trailing arm setup? I'm all about that bolt-in ...

robnolimit 08-27-2016 01:20 PM

Re: No Limit Trailing Arm Rear Suspension
 
We sure do. We can prep both standard 9" big bearing housing/axles. or floaters. Pricing breaks down like this.

9" heavy duty Moser housing with billit Torino (big bearing late model) ends, pinion centered, with fill and drain added + Moser 31 spline axles with access hole, 2 1/2" offset, bearings and seals and 1/2" x 20 studs. Standard C10 width is 63" WMS (wheel mount surface) - can be 62" or 61", no extra charge. With No Limit brackets welded* $1,295.00

9" BBLM brakes 11" Explorer style, drilled/slotted = $590
12.19" x 4 piston Wilwood = $895
13" x 4 piston Wilwood = $1785

9" Moser heavy duty floater housing, fill and drain added. Steel hubs and drive plates, all bearings, seals, retainers, 31 spline axles. Pinion centered, 63" std WMS. - 60" to 62" avail also. No Limit brackets welded = $1395

Floater brakes 11" Speedway style with Wilwood Superlite (no E Brake) $745
12" Wilwood w/E-brake in caliper $895
13" Wilwood with Superlite and Mech spot E-brake caliper $1680
For drilled/slotted rotors on these kits add $90

* Brackets not included, but are part of No Limit suspension packages.

vtekdis 08-27-2016 03:59 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by robnolimit (Post 7695488)
We sure do. We can prep both standard 9" big bearing housing/axles. or floaters. Pricing breaks down like this.

9" heavy duty Moser housing with billit Torino (big bearing late model) ends, pinion centered, with fill and drain added + Moser 31 spline axles with access hole, 2 1/2" offset, bearings and seals and 1/2" x 20 studs. Standard C10 width is 63" WMS (wheel mount surface) - can be 62" or 61", no extra charge. With No Limit brackets welded* $1,295.00

9" BBLM brakes 11" Explorer style, drilled/slotted = $590
12.19" x 4 piston Wilwood = $895
13" x 4 piston Wilwood = $1785

9" Moser heavy duty floater housing, fill and drain added. Steel hubs and drive plates, all bearings, seals, retainers, 31 spline axles. Pinion centered, 63" std WMS. - 60" to 62" avail also. No Limit brackets welded = $1395

Floater brakes 11" Speedway style with Wilwood Superlite (no E Brake) $745
12" Wilwood w/E-brake in caliper $895
13" Wilwood with Superlite and Mech spot E-brake caliper $1680
For drilled/slotted rotors on these kits add $90

* Brackets not included, but are part of No Limit suspension packages.


So no welding required just bolt it in? What do you guys carry as far as the 3rd members and what would you recommend for autox?

robnolimit 08-27-2016 05:08 PM

Re: No Limit Trailing Arm Rear Suspension
 
Yes, no welding to the housing needed. For our FatBar, there would still be some welding needed for the Panhard mount, - but, we are going to change C10 FatBar kits to use the new C10 Panhard from the Trailing Arm kit, so those will be bolt on as well after Oct-1. (maybe sooner.)

As far as gears, a lot depends on the trans and tire diameter. For highway, we like to see about 2400 rpm at 70 to 75 mph. So the O.D. ratio comes into play. For most autocross, GoodGuys and USCA are mostly 'first gear' coarses, so as a rule, in first gear you want about 9.5" of tire roll per 1 RPM. So tir diameter can play big into the gear ratio here. 3.5 or 3.73 is usually pretty close.

vtekdis 08-27-2016 07:40 PM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by robnolimit (Post 7695665)
Yes, no welding to the housing needed. For our FatBar, there would still be some welding needed for the Panhard mount, - but, we are going to change C10 FatBar kits to use the new C10 Panhard from the Trailing Arm kit, so those will be bolt on as well after Oct-1. (maybe sooner.)

As far as gears, a lot depends on the trans and tire diameter. For highway, we like to see about 2400 rpm at 70 to 75 mph. So the O.D. ratio comes into play. For most autocross, GoodGuys and USCA are mostly 'first gear' coarses, so as a rule, in first gear you want about 9.5" of tire roll per 1 RPM. So tir diameter can play big into the gear ratio here. 3.5 or 3.73 is usually pretty close.

Thanks for all of the info and as always very informative and helpful. I'll be in touch.

SierraMtns 09-03-2016 07:30 PM

Re: No Limit Trailing Arm Rear Suspension
 
No turning back now...:D

http://i483.photobucket.com/albums/r...pswwg1ow4j.jpg

crakarjax 09-03-2016 10:13 PM

Re: No Limit Trailing Arm Rear Suspension
 
Is that a shallow notch compared to CPP or is the center section just longer?

SMKN TA 95 09-10-2016 10:54 PM

Re: No Limit Trailing Arm Rear Suspension
 
Is Hotchkis the only rear anti roll bar that works with the No Limit trailing arm setup? I thought I read before that the No Limit rear anti roll bar setup won't work?

gringoloco 09-11-2016 12:08 AM

Re: No Limit Trailing Arm Rear Suspension
 
Quote:

Originally Posted by crakarjax (Post 7703072)
Is that a shallow notch compared to CPP or is the center section just longer?

Appears to be shallower. I guess the NL notch is in production?
Quote:

Originally Posted by SMKN TA 95 (Post 7709388)
Is Hotchkis the only rear anti roll bar that works with the No Limit trailing arm setup? I thought I read before that the No Limit rear anti roll bar setup won't work?

Curious on this, too. Hotchkis is nice, but spendy. I don't think the standard NL bar will fit with the coilovers.

robnolimit 09-12-2016 10:34 AM

Re: No Limit Trailing Arm Rear Suspension
 
OK, YES, the No Limit notch is 'shallower' or - not as deep - as some others. This is on purpose. With this depth, and a 1/2" bump stop, when the axle tube hits the bump, the top of the diff housing will be 1/4" from the bed floor. So, any more notch would A) needlessly weaken the frame rail, and/or B) require a bubble or tunnel in the bed floor to clear the diff housing. Since this notch was developed with "stock rails" in mind, we decided to match that idea with a "stock bed floor" concept.

As for the rear bar on our Trailing Arm kit, we are still set up to use the Hotchkis bar, if desired. Now, Autocross testing has yielded faster laps with-out the bar. The normal street driving, even on the Dragon, is more comfortable with-out the bar. But, high speed open-track laps are faster with the bar. **Factor in here 200 TW tires and some Aero to get them to stick, otherwise, no bar is a better choice.

crakarjax 09-12-2016 11:54 AM

Re: No Limit Trailing Arm Rear Suspension
 
I like the shallow notch in that it gives people another unique option.

Re: sway bar, that's not what I expected! Any idea why autox is faster with no rear bar?

robnolimit 09-13-2016 09:20 AM

Re: No Limit Trailing Arm Rear Suspension
 
Auto-X (OK, Fast Auto-X) is probably the hardest challenge for your suspension/tires than anything else (ON-road competition) we see higher shock and spring rate changes than anything else. Honestly, many Auto-X'ers have surpassed the G force loads of a lot of road racers, it's just that on an Auto-X coarse, the 'time' of the G event is much shorter. The 'violence' of the tire loading is much harsher. So, allowing the body to roll a bit more (still with the rate controlled by the shock) slows down the rate of tire loading and allows the tire to get a grip for a bit longer.


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