Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Hi hinz28-
Thanks for posting the clear pics of your install.
John just shipped me a kit on Fri.

What is the fitting size on the Willwood master? 1/8 NPT? 4AN?

I'm doing a set up with a NV3500, which has the GM quick disconnect fitting on the internal slave. I'm having a tough time finding a generic hose with the GM quick disconnect on one end with either 1/8 NPT or 4AN on the other end.

Any suggestion for a reasonably priced generic hose which would connect the clutch master to the GM fitting internal slave?

All the aftermarket hoses which have a GM quick connect on the slave end, have the GM roll pin fitting on the MC end.
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Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

great kit! I made my own and will be changing out for your better design. I have two trucks, both running 4wd and NV4500 conversion kits. These have external slave cylinders not hydraulic TO bearing. what would you recommend to use for a clutch MC with the GM OE (GM #15615868) used on 85-91 GM truck, or if there is a suggestion for a better option for slave? Interested in buying for two trucks, one (72 k20) will just need the plate for the brake booster, the other is a 68 Suburban where I will be needing the whole shebang, new brake booster / MC and clutch kit. Will send an email directly.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

On the willwood master I am using a 3/8 to -3an adapter. Then running a -3an line to the slave.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Would I be able to buy one for an nv3500 I know they are not the greatest trannys but its what I have. And would I be able to use my 71 booster or would it just be easier to get an older style booster?



Contrary to my name I actually own a 1971 c10

[QUOTE=68Cervd;8047669]Would I be able to buy one for an nv3500 I know they are not the greatest trannys but its what I have. And would I be able to use my 71 booster or would it just be easier to get an older style booster?

Hi 68Cervd- this summer I put a NV 3500 out of a 2006 4.3 Silverado into my 69 blazer and it is one of the best things I've done to the truck. It takes some fiddling around with things like transmission brackets, flywheels / pressure plates and figuring out how to get the mechanical speedometer to work with the VSS on the transmission. But the good thing is that with the NV3500, your shifter ends up in the right place for either a bench or buckets with the center console.

Be aware that there are some differences between the 2006 NW3500, and the NV3500s they put in the old S10's.
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Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

The only difference in what I make and sell for a hydraulic clutch conversion is the clutch master. I simply provide you with the correct clutch master for the NV3500. The '71 & '72 boosters are not exactly compatible with any of my booster brackets. To use it, you would have to elongate the booster holes in the booster bracket. Or you could replace it with one of the many,many compatible boosters from the list. You do not want an older style booster. You need a newer one.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

[quote=72c5;8047706]

Do you have a thread started on how you swapped the transmission into your blazer and did you make your own cross member or did you purchase one?:chevy:

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Where would be this list of compatible boosters I am getting a little antsy to do the swap. Havent driven the old girl in months.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

No I don't have a thread, but it wasn't too difficult. Actually one of the trickiest things is installing Captain Fabs remote clutch Reservoir. I bought a cross member from Summit, and kind of guessed on the dimensions which weren't very good so I had to modify that. If you have an old style SBC, I can give you the part numbers for the pressure plate and flywheel.

What year is your NV3500? And did you have a stick in there before?
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Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Well I intend on using the same engine that came with the transmission but it is a 1991 chevy k1500 transmission and I did not have a stick in the truck before.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Well I intend on using the same engine that came with the transmission but it is a 1991 chevy k1500 transmission and I did not have a stick in the truck before.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

The list of compatible boosters comes with every one of my booster brackets. That '91 K1500 is one of them. There is a partial list of compatible boosters in post #35 of this for sale thread. For a transmission crossmember all you need is an auto trans crossmember for a '66-'87 truck.


A 4wd transmission will not work in a 2wd truck without completely tearing apart the trans and changing the output shaft and adding a tailshaft housing. You are going to have to add a clutch pedal assembly to your cab.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

What size line would I need to be using for the clutch master?

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

I used -4 AN 36" AFCO hose (pn 40280) with a -3AN to -4 AN fitting, but could've used a few more inches of hose. The 36" hose worked, but just barely. Another 12" would give you more options to route the hose in a neater fashion.

For my 2006 NV3500 I used the stock slave clutch cylinder out of a 2006 Silverado 1500 4.3L, Rockauto part number 360128.
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Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Did I send you a .700" bore clutch master with your kit? If so, does the clutch disengage enough?

Yes you sent me a 0.700 bore Wilwood master cylinder. It moves the slave far enough to fully disengage a brand new clutch pressure plate and flywheel.

Thanks John, your entire kit is very nicely designed and produced. Please excuse the tape on the last picture I lost one of the c-clips.
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Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Where would I be able to find a new tailshaft housing for my 4x4 nv3500 to make it a 2wd?

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

There should have been an extra e-clip in your hardware bag

Have you checked a transmission shop? The trans is going to have to be completely torn down to change it to a 2wd. It might be cheaper to just find a 2wd NV3500. You might inquire on the cost to change yours over to 2wd.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Glad I found this thread. I was scrolling down looking for a clutch pedal to convert a '69 cab to manual. The cab will be going on an '89 C30 with hydro boost brakes and external slave. I was already imagineering a way to get this mismatch to work. Seems you've already done that..:chevy:
The '89 already has a new clutch master on it. Any way that would work with your kit ?
Thanks

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Sorry for the delay in replying

All of my hydraulic clutch conversions are designed to run a Wilwood or similar clutch master. I do not think a '89 C30 clutch master is compatible.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

No biggie on the delay, I don't even get the truck until next week.
Once it's here and I get a clutch pedal, I'll get back with you on the kit. It appears the '71-72 models had a slightly different mount and return spring set up.
Thanks

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

All of my booster brackets now come with slotted booster mounting holes to also accept aftermarket universal boosters with the 2-3/8" x 2-3/8" center to center mounting studs.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Need one for 69 GMC with NV3500, email sent.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Email replied to and payment received.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Hi Capt, Paypal sent for two (2) standard booster brackets. Thank you and Happy Holidays.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Can you sell me just the hydraulic clutch parts? I want to run my stock brake booster.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

If you want just the inside linkage assembly that is $100 plus shipping of $7.15. I can't guarantee that it will work with your factory booster assembly. If you have a '67-'70 booster, it will bolt right up to my booster bracket and then won't be hanging way out in the engine bay.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Do u sell just the hydro clutch setup with cylinder that mounts to firewall and pedal linkage ?

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

If you want everything but the booster bracket, the cost would be $157.50 plus $13.60 for shipping. You will have to figure out the correct install location yourself.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

What a cool product!
I would like the kit in powder coat, minus the master cylinder (Santa brought me a Speedway motors gift card).
Please PM me total info and PP

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

PM sent.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

I am officially notifying everyone that I will be on vacation from 02-05-18 thru 02-13-18. I will do my best to get all orders built and shipped before I leave, if placed by 01-31-18. Orders placed while I am gone will be built and shipped in order of receipt of payment once I return. Thanks for understanding.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Got mine Saturday! Everything looks great. Thanks.

Have fun on vacation, hope you’re going somewhere warm.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Thanks. Yes it should be warm in Honolulu.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

I’ve had my hydraulic clutch/hydraboost combo for a couple weeks now. Very nice product and really good customer service and shipping time! I highly recommend captain fab!

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Getting ready to do the NV3500 install, what is everyone using to adapt the external slave with the GM push in fitting to a -3AN? BTW very happy with the kit, the brake side went smooth as can be and looking forward to the hydraulic clutch and 5 speed.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

I would like to run a hydraulic throwout bearing along with this kit ( on a muncie 4 speed). Any recommendations?

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

A recommendation for what, a hydraulic throw out bearing? I don't remember what all of my customers have used with the early transmissions, but it seems to me that someone recently was running a Muncie with a McLeod hydraulic throw out bearing. I have no personal experience with any of them.

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

I need one of these in my life. PayPal coming at ya :chevy:

Re: '67-'72 Power Brake Booster Bracket With Hydraulic Clutch Conversion
 

Payment received....thanks for the purchase :)