Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Diff Bearing Caps

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Old Sep 19, 2008 | 06:48 AM
  #1  
vette9190's Avatar
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From: Lowell, In
Car: 1991 Chevy Camaro RS
Engine: 350 TPI
Transmission: 700R4,
Axle/Gears: 3.73 w/SLP Zexel Torsen Limited Sli
Diff Bearing Caps

Ok I've searched and searched here.
Can someone please tel me were I can buy new bearing caps for the 7.5 rearend?
I got a rear out of a 97 camaro ss but i need new caps for it
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Old Sep 19, 2008 | 05:20 PM
  #2  
//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Diff Bearing Caps

you cant, they are unique to each rear, and to each side for that matter
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Old Sep 19, 2008 | 11:47 PM
  #3  
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Re: Diff Bearing Caps

Why do you need new caps for it? The caps are the same as the 8.5 caps, so you can use them. Try Tom's Differentials. You must have them machined to fit the housing. This can be expensive. If the caps are missing then I'd find another housing.
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Old Sep 20, 2008 | 02:02 AM
  #4  
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From: SF bay area
Car: 86 Camaro iroc-z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.42 Posi
Re: Diff Bearing Caps

try randys ring and pinion. thats what its called, good place.
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Old Sep 20, 2008 | 07:54 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Diff Bearing Caps

as mentioned above, it's like main bearing caps in an engine (actually very much like it...)
machined for that rear end.
Take some from a JY, but then bring it in to a engine/machine shop. They'll need to grind a few thou off the bottom, then re-hone to make it true and round again. I doubt anybody has a tool for this (unless they can use the same tool as for in an engine block, if the rod is long enough...)

Might be better off finding a new housing
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Old Sep 20, 2008 | 09:18 PM
  #6  
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Re: Diff Bearing Caps

Actually the new steel bearing caps can be fitted without boring the housing. The cap is made with extra material on the mating surfce. This surface is milled so that when it is bolted to the housing the hole will be round. Almost all of these caps are made for 1/2 inch bolts, which means that the bolt holes in the housing will have to be drilled and tapped for the larger bolts. I think there is one company that makes caps for 7/16 bolts, but I don't remember who it is.

JFYI, most of the time only the left bearing cap is replaced with a steel cap because it is the one that carries most of the load. That is why you won't find bearing caps sold in pairs.
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