I have a 1992 Camaro RS with 2.73 rear. My friend is scrapping his 1978 Camaro Z28. He will sell me his factory 3.42 Posi rear. Will it fit and how much is it worth?

 

No. (if you are switching the whole housing)

2nd gen rears are leaf spring...

3rd gen rears are coils...

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
and 2 POS commuters...

R.I.P. #3
"He can see air"

 

You can take the gears. Better take it to a shop to get them installed unless you are good at matching it all up.

 

you cant use the gears either the size of the ring gear is larger on 70-81 cars that's assuming it's a 10 bolt

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87 trans am 350,L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,tb bypass,accel supercoil,hollowed maf,slp 3in. catback,a/c delete.
oh!no!i think my maf is going!!!!!!!!!!!!

14.10@97mph w/2.01 60'

slp catback is finally on!!!
fastchip prom is in.OH!MAN!
FLOWMASTER S.U.C.K.S

 

Nothing is the same except maybe some brake parts (but I doubt it). The 2nd gen is an 8.5 inch corporate 10 bolt diff and the third gen is a 7.5 10 bolt diff. Same if they happen to be a 12 bolt or 9 bolt respectively.

Miles

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88 427 Camaro
12.18 @ 113mph 1.75 60ft
Currently installing 3.73's into my 9 bolt (YES,it is a 9 bolt & YES they are 3.73's, not 3.70. 4.11's to follow soon )
www.koolmeister.com