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Old 08-19-2010, 10:41 PM   #26
68GMCCustom
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Re: Rack & Pinion on Stock Crossmember?

I've also heard of t-bird racks being used.
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'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
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Old 08-19-2010, 10:51 PM   #27
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Re: Rack & Pinion on Stock Crossmember?

Here is the website with the truck build..
http://okcminis.com/showthread.php?t=8849
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Old 08-19-2010, 11:11 PM   #28
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Re: Rack & Pinion on Stock Crossmember?

Quote:
Originally Posted by jasonhall View Post
Here is the website with the truck build..
http://okcminis.com/showthread.php?t=8849
Checking out that site, the last post says it,

"Mustang fox body "

So it's not a MII but a '80's to early '90's Mustang rack. That makes a little more sense, since the later Mustangs are wider than MII setups.
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Old 08-20-2010, 12:45 AM   #29
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Re: Rack & Pinion on Stock Crossmember?

Quote:
Originally Posted by chevy_mike View Post
Checking out that site, the last post says it,

"Mustang fox body "

So it's not a MII but a '80's to early '90's Mustang rack. That makes a little more sense, since the later Mustangs are wider than MII setups.
Yeah that had me confused for a minute. The t-bird racks are wider as well. Not sure how much. IIRC the mounts are just a hair wider but the rack is a bit more...

Have to check on that...
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Old 08-20-2010, 06:14 PM   #30
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Re: Rack & Pinion on Stock Crossmember?

I seem to have two threads going on this topic, but anyway, I measured a 2006 GMC 2wd 4.3L rack, and it is 59" spindle to spindle, and the rack housing is about 21".
They are about $300 new, and $250 rebuilt.
Hard to get a photo, but you can see how the rack bolts to the crossmember in front of the engine. I may be able to lay in a piece of angle iron to my 67 and bolt the rack to the vertical, and have the lower horizontal protect the bottom of the rack tube when I am running too low.
That rack is used on vans, tahoes, surbs, pickups, and maybe impalas from 02 up on the small engines.
Look how short the 4.3 is in the engine bay!
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Old 08-20-2010, 06:43 PM   #31
68GMCCustom
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Re: Rack & Pinion on Stock Crossmember?

at 1st with that rear mount you'd think its a rear steer rack...untill you see where the ends come out.
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'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
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Old 08-21-2010, 12:52 AM   #32
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Re: Rack & Pinion on Stock Crossmember?

Quote:
Originally Posted by jnocero View Post
I seem to have two threads going on this topic, but anyway, I measured a 2006 GMC 2wd 4.3L rack, and it is 59" spindle to spindle, and the rack housing is about 21".
They are about $300 new, and $250 rebuilt.
Hard to get a photo, but you can see how the rack bolts to the crossmember in front of the engine. I may be able to lay in a piece of angle iron to my 67 and bolt the rack to the vertical, and have the lower horizontal protect the bottom of the rack tube when I am running too low.
That rack is used on vans, tahoes, surbs, pickups, and maybe impalas from 02 up on the small engines.
Look how short the 4.3 is in the engine bay!
Please do not take this offensively..... Put that 2006 GMC R&P in place on your truck w/the 59" spindle gap & the rack housing @ 21".... How 'correct' is that for your truck? Sure, it might fit; but how correct is it for the geometry?
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Last edited by SCOTI; 08-21-2010 at 12:53 AM.
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Old 08-22-2010, 11:29 AM   #33
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Re: Rack & Pinion on Stock Crossmember?

No offense taken. I enjoy good discussion, thats why I joined this site, and thats why I post my hairbrained ideas on this board first before I spend time and money.
Don't know the answer to whether it is the correct rack for a 67. The 06 width is 59", and the 67 is 56". Seems like 3" could be made up in tie rod ends and couplers pretty easy.
As for geometry, my plan was to try and place the rack as close as possible to the Flaming River rack, make sure it worked for all control arm and spindle angles, and try it out.
That's why I posted here, to try and find someone who had purchased the Flaming River kit, but no one has.
Just trying to find a less expensive alternative to a complete subframe swap, and do it safely. I think there is a need for a bolt in R&P that doesn't require notching the frame and doesn't cost $3K. The nice thing about DIY is that you don't have to have all three of the "Better, Cheaper, Faster" conditions. You can try different things on your own time, and just settle for "Better and Cheaper".
I really appreciate your posts Scotti.
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Old 08-22-2010, 01:20 PM   #34
68GMCCustom
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Re: Rack & Pinion on Stock Crossmember?

I too am looking to add a r&p and feel about the same on the available crossmembers. There's a whole slew of "static" drop guys that don't care about laying frame. The dropmember would work great for these guys if it wasn't engineered to have the rack several inches up into the frame. I'd buy one if there was one made for us static drop guys where everything bolted in w/o cutting/welding. I've got a welder...so thats not the issue. I'm trying to shed front end weight...and simplify the steering system.

As long as the rack is in line where the drag link normally lives and the ends match the total length of the stock system...don't see why it wouldn't work provided the rack is mounted securely. Using with the fox body rack or t-bird.

W/O an available solution for these guys...they're apt to do it themselves.
I'd buy the new crossmember engineered for it all..... if it was made.
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'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
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Old 08-22-2010, 02:05 PM   #35
SCOTI
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Re: Rack & Pinion on Stock Crossmember?

Quote:
Originally Posted by jnocero
No offense taken. I enjoy good discussion, thats why I joined this site, and thats why I post my hairbrained ideas on this board first before I spend time and money.
Don't know the answer to whether it is the correct rack for a 67. The 06 width is 59", and the 67 is 56". Seems like 3" could be made up in tie rod ends and couplers pretty easy.
As for geometry, my plan was to try and place the rack as close as possible to the Flaming River rack, make sure it worked for all control arm and spindle angles, and try it out.
That's why I posted here, to try and find someone who had purchased the Flaming River kit, but no one has.
Just trying to find a less expensive alternative to a complete subframe swap, and do it safely. I think there is a need for a bolt in R&P that doesn't require notching the frame and doesn't cost $3K. The nice thing about DIY is that you don't have to have all three of the "Better, Cheaper, Faster" conditions. You can try different things on your own time, and just settle for "Better and Cheaper".
Quote:
Originally Posted by 68GMCCustom View Post
I too am looking to add a r&p and feel about the same on the available crossmembers. There's a whole slew of "static" drop guys that don't care about laying frame. The dropmember would work great for these guys if it wasn't engineered to have the rack several inches up into the frame. I'd buy one if there was one made for us static drop guys where everything bolted in w/o cutting/welding. I've got a welder...so thats not the issue. I'm trying to shed front end weight...and simplify the steering system.

As long as the rack is in line where the drag link normally lives and the ends match the total length of the stock system...don't see why it wouldn't work provided the rack is mounted securely. Using with the fox body rack or t-bird.

W/O an available solution for these guys...they're apt to do it themselves.
I'd buy the new crossmember engineered for it all..... if it was made.
Understood. Neccessity is the mother of invention. I agree there needs to be an 'affordable' R&P upgrade for these trucks & I don't consider 3K to be in the ball-park for the average guy.
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
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Old 08-22-2010, 06:56 PM   #36
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Re: Rack & Pinion on Stock Crossmember?

Lookin forward to the Porterbuilt version... "coil-over" w/rack and a bit less drop to compliment the Stage II mild drop rear. I think I read that it is hard to make work with a front coil spring.
http://67-72chevytrucks.com/vboard/s...d.php?t=396294
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Old 08-22-2010, 09:05 PM   #37
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Re: Rack & Pinion on Stock Crossmember?

On that OKC minis example, it's important to note that the frame has been sectioned and "double" Z'd, probably instead of using air bags for a drop. This means the frame is not as much in the way of a rack as it would be for a strictly bagged drop.

Anyone who chooses to follow that example may need to implement the whole plan of attack including the frame mods. Implementing half-a-solution plan is the same as implementing a WHAT-o-lution?
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Old 08-22-2010, 10:22 PM   #38
68GMCCustom
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Re: Rack & Pinion on Stock Crossmember?

that new dropmember still has the frame notched for the end links to pass thru.

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'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
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Old 08-23-2010, 09:49 AM   #39
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Re: Rack & Pinion on Stock Crossmember?

[QUOTE=68GMCCustom;4152445]that new dropmember still has the frame notched for the end links to pass thru.

Yeah.... I was just showing that coil-over version is close. "coil-over 3.4" might be mounted two inches lower and still provide great ground clearance, rack and pinion, centering the wheel in the well, Lsx mounts, and tubular control arms with the logo.
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Old 08-23-2010, 01:20 PM   #40
68GMCCustom
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Re: Rack & Pinion on Stock Crossmember?

well I hope he decides to build it then! I told him this is what I wanted months ago.
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'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
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Old 01-10-2022, 07:06 PM   #41
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Quote:
Originally Posted by 68GMCCustom View Post
well I hope he decides to build it then! I told him this is what I wanted months ago.
any luck on the T&T? Ive been searching forever looking for an alternative to a new crossmember. I’ve found some power racks just no manual racks. Or the info as to weather a manual rack will fit into their brackets so I am still at home plate trying to get in base if you will. Just interested in your progress
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