Build me a Strong 7.5" 10-bolt! If it is possible. I want a reliable rearend for my GTA.

 

how about a 12 bolt or a 9" ford?

 

That would be great, but I don't have $2200.00 for just my rearend at the moment!

 

Auburn pro series carrier & richmond 3.42 gear.
So far has been good for 11.10's @123mph on dragradials, (91 Z28 w/ motorwork and Procharger)

 

Oooh. That makes me feel better. I just finished installing a race ready 7.5 in my car a week before I blew up my engine. I'm now in the process of installing a big block and was wondering if the diff could handle a low 11 second pass. I guess I won't know for sure until spring.

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Stephen's racing page

87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress

Best results before the engine blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!

Member of the Calgary Drag Racing Association

 

Why doesnt your 88 GTA have a 3.27 9-bolt rear end in it? That was supposed to be stock. Its a 350 L98 right? The 9-bolt will be stronger stock than a 10-bolt.

If you want to build up a 10-bolt, there is an article on doing that in the tech section of this website.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

Anyone have 3.27 gears for a 9-bolt? I've got the rear, but has 2.7x. Just putting out feelers, I'm looking.

 

I sold the original 9-bolt, cause it is hard to find parts, etc. I had planned to build a ford 9", but I really don't know for sure if that is what I want. Does anyone have good ideas to mount a torque arm on a 9" without buying a custom housing? Better yet, those of you that have custom housings, how is your torque arm attached? Thanks

dave

 

The guy that I bought my 10 bolt from was running high 10's on it even before he rebuilt it and sold it to me! Maybe this rearend has little gremlins making sure it doesn't break



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82 Z28
355 carb'd, Edelbrock Performer RPM package (minus heads), Hooker Super Comps, Mufflex 4" offroad y-pipe, 700r4 with B&M shiftkit, '85 IROC 10 bolt rear with Richmond 4.10's & Auburn posi unit, Lakewood 50/50 drag shocks. Shooting for 3000lbs w/ driver.

The car's website (New design in progress...very cool look)

(383/TH350 buildup this winter)

AIM: Unitedhope
ICQ: 77979548

 

I have a set of 3.27 gears for the 9-bolt sitting in my garage..... Ready to ship...

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Sportsman II 72 CC heads, Pete Jackson gear drive, Performance Resources chip, Edelbrock 1 5/8" headers and Edelbrock cat back exhaust, hi-flow cats, Trans-go stage 3 shift kit, Vigilante 9.5" 2800 stall convertor, SLP cold air induction, SLP roller camshaft, 24lb ADS injectors, AFPR, 3.45 rear end gears, and other goodies...

http://members.aol.com/jwnolte/raven.htm

 

The easiest way to mount the torque arm to a 9" is to buy the bracket. I think either Currie or Moser sell it for about $150

My 3.27 9 bolt complete diff with disk brakes is for sale but I doubt it would be a good deal for anyone when you consider the shipping costs from Canada to the US.

 

"How to build a better 10-bolt"
http://www.isthq.com/~dan/10bolt.html

I did mine for under $1000 and it's counterparts are all in the 12.05 second, 1.7 sec 60' range without failure.



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Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines,
5-point racing harness, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Speed-sensitive steering conversion, underdrive pulleys, Crane Hi-6 & more. 1.05g skidpad verified.
New best E/T! 14.400 at 98.6 MPH in 88 degree air at Stanton, Michigan.