8.5 rear swap

[MonteMan1978]

I got my hands on a b-body 8.5 posi. I was wondering if I can install it in a 78 monte? What kind of problems will I come across when I install it? Any and all help is appriciated.

 

[mrapii]

Won't work, only G-Body 8.5"s swap in.

 

[zerex]

Yah it's not listed as a swap candidate on any website. I would bet all the mounts are either in the wrong place or wrong angle. I would bet wrong place or someone would make arms to fix the angle problem (for example the arms to fit a 12 bolt out of earlier g-body/A-body).

let us know what you find out though. What type of B-body did you find it in? I would guess a Cop Car Caprice? Since all the B-bodies I have seen have had 7.5" 10 bolts but havn't had a chance to see what a caprice with police package had.

 

[elementoleflows]

will a rear end out of a 3rd gen f-body camaro bolt up without a problem? or will i need to change or modify anything?

 

[mrapii]

Nope; only G-Body rear axle assemblies swap.

 

[elementoleflows]

what car out of the g body family has the best or easyer to find rearend with good gearing and strong enough to hold with a built 350

 

[illregal82]

grand national or t-type 8.5 rearend would be the best stock swap as far as i know

 

[steve 86]

what car out of the g body family has the best or easyer to find rearend with good gearing and strong enough to hold with a built 350

use a locker they will help any 7.5 rear.

 

[mrapii]

What is a "locker"?

 

[steve 86]

its a spring loaded coupler that you put where thespider gears are,the force of the rear spinning locks the axles together......it kinda looks like a spool when installed. its kind of hard to explain without showing.
it does unlock when you turn and sometimes make a clicking sound, but hey,its worth it for the result of an absolute positive posi.
if you use 85/140 it keeps it pretty quiet(when turning). it doesnt make any noise usually.
did i mention you can only use them in an open rear?