i have a 3.73 ring and pinion from a '83 camaro z28 with a auburn carrier and 4 wheel disk brakes and i want to install into a stock 92 cammaro rs 25th anniversery will the gears work or will i have to buy a different set for the 92 advise

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I think you'd also have to switch your axles since they're 26 spline (probably) and the 92's are 28 spline.



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1986 SC Camaro
Mods: Threw 2.8 in garbage, put in rebuilt
350 .060 over, XE268H Comp cam, Edlebrock
Performer Intake and Edlebrock 600 CFM Carb,
Pete Jackson noisy GearDrive (which sounded
cool for about 5 minutes, now I'm sick of it)
Rebuilt TH350, 3.42 Rear Gears. LCA RLB's.
B&M Mega Shifter.

 

i'm not using the carrier the only thing i'll use will be the ring and pinion. what i need to know is if the rear axle in 83 was a 7.5 or 7 5/8 and what the rear axle size is in the 92

 

The 7.5 and 7.625 interchange. Do you have a 2 or 3 series carrier? The 3.73's will require a 3 series carrier. What gear ratio do you have? An open rear with 3.73's will have some traction problems, may need to upgrade to a limited slip or powertrax or something.

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350 with stealth intake, holley carb, 470 lift cam. 700r4 with .5 boost valve, vette servo, tci lock-up kit, B&M megashifter. Richmond 3.73 gears, powertrax locker, timkin bearings, synthetic lube. Custom 3 inch single into 2 2.5 pipes. 1 1/2 drop springs, 1 5/16 solid front sway bar, 1 inch rear bar, custom subframe connectors, custom LCA relocation brackets. Kobel ground FX, current red metallic paint. Lots of other stuff...
82camaro

 

why dont you swap the whole rear end? wouldnt that be easier?

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Wide Open Till You See God...Then Brake

 

what is the difference between the 2 and 3 series carriers and i only have the ring and pinion fromthe 83 the car was wrecked about 6 years ago and i had the ring and pinion that i was going to install in the 92 rs. i would love to upgrade to a posie know of anybody who has an auburn or posie trax really cheap?

 

The difference between the 2 and 3 series carrier is the thickness of the surface that the ring gear mounts to. On lower (numericly) ratios the ring gear needs to be closer to the center so the mounting sureface is thicker. The opposite is true for 3:23 and up.

Goto www.slponline.com they have take-off posi units for sale.. they are $100.. MUCH better than spending $300 for an auburn or powertrax. The SLP unit it designed for 28 spline axles, so you are covered.

I suggest buying the posi unit, a gear installation kit and taking the rear out. Then take it to a reputable installer.

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• 89 Formula 305 WS6
  SFC's, LCA's, Air Foil
  Spohn Panhard Bar
  Flowmaster Cat Back, Tranny Cooler
  A/F Ratio Meter (not a mod but it sure spurs interest)
  Trans Temp Gauge
  Most "Free" Mods
  3:73, Zexel Torsion Posi
  !cat
  CAI W/ K&N
  
  15.559 @ 88 MPH
  (Hot as hell that day, and i have some tuning to do)
  
• 90 Eagle Talon 2.0
  (Winter Beater)
  Free intake mods

 

i guess what i need to do is just crawl my lazy *ss under the car and find out what gear ratio is in there now and that will help to determine if the 3.73's fromthe 83 will work in my 92. now the 83 did have 4wheel disc with the 3.73 auburn if that helps any in determining if they will fit the 92

 

I think that's backwards. The numerically lower gears have a larger diameter pinion, so the ring gear has to be farther away from the center. For instance, you can get 3.73 gears for a series 2 carrier, but the ring gear is thicker and uses longer bolts.


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1985 Yellow IROC-Z 5.0 HO, T-5 3.73 Torsen, 4 wheel disks
PFCM pads, GTA wheels, Koni yellows, B&M Ripper, Dynomax

 

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1992 Pontiac Firebird 350/Six Speed
1987 Toyota Pickup 383/500+ HP