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1985 Iroc Rear

1K views 9 replies 4 participants last post by  taz3 
#1 ·
I can pick up an 85 Iroc posi rear pretty inexpensively. Can this be used on my 74???

Thanks
 
#3 ·
Most of the 85's were 342's, because of the 700r4, it could either be a 9 bolt or ten and as mentioned were coil sprung, but can be converted to be leaf mounted, you'll need to find out the over all width.
 
#5 ·
The 9 bolts are real expensive to change the gears, I have one here from an 89 GTA with disc brakes I was going to use on an S10, but never did.
 
#8 ·
I believe they're wider and will need spring perches. Your best bet is a Nova 72 up so you'll want an 8.5 10 bolt they cheap and fairly popular still.
 
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