would this work?

[megaladon6]

i'm trying to find the easiest/cheapest way to upgrade the axle in my g-body. i know the old a-body rears can be used but the upper control arm mounts don't properly mount up. what about a 90's b-body? i know the caprice 8.5in rear used a 5x5 lug bolt pattern but i'll be changing axles anyway, so i'll fix that. but will the control arms, springs and shocks line up and work?

[gearheads78]

Not going to work as far as mounts. Its also more than likely too wide to.

[megaladon6]

the width doesn't bother me as a need wheel spacers anyway, but since the mounts won't line up, i guess it's back to square one. thank for the info

[tiek1011]

You could swap a 12 bolt with these (http://cgi.ebay.com/ebaymotors/G-Body-Malibu-12-bolt-Swap-Upper-Dbl-Adj-Control-Arm_W0QQcmdZViewItemQQcategoryZ33583QQihZ009QQitem Z190214905419QQrdZ1QQsspagenameZWDVW) modified upper control arms. I'm not sure which 12 bolt however.

[TPI Monte SS]

Those arms are to swap a '64-'72 A-body rear into a G-body. The '64 and '65 rears are about an inch narrower on each end, IIRC. My '88 SS came with a 12-bolt from a '72 Chevelle, which I promptly sold since it was overkill for my car. I believe the rims that were on the car had ~5" backspacing and fit pretty well.

[megaladon6]

this was an attempt at a cheap replacement. if i go to a 12 bolt it'll almost certainly be a complete unit from someone like currie or moser. or building and modifying an 8.5in.