Questions.

[zerex]

What years do I look for 8.5 rearends in?

Junkyard going out of business has 2 monte's (79 ish, 80 ish) 1 elky,1 regal if there is anything unique people are looking for.

The Elky had a manual most of the hardware is there. Which cars will this fit in? And does anyone want it? How much does this stuff go for?

 

[clean8485]

If you're looking for an 8.5 diff for a G body, then look for a Buick GN. I've heard that some of the mid 80's Olds 442's had them too, but I'm not sure. If you find one, then be prepared to pay for it.
A friend is looking for the chrome strips that are in the bumper fascias for a 1980 Monte Carlo, but they must be in good condition.
The Elky pedals should fit pretty much any A/G body from '78-'88, but the rest of the clutch linkage is probably made for a small block Chev application, as is the bellhousing.

 

[DrRansom442]

If you're looking for an 8.5 diff for a G body, then look for a Buick GN. I've heard that some of the mid 80's Olds 442's had them too, but I'm not sure. If you find one, then be prepared to pay for it.
A friend is looking for the chrome strips that are in the bumper fascias for a 1980 Monte Carlo, but they must be in good condition.
The Elky pedals should fit pretty much any A/G body from '78-'88, but the rest of the clutch linkage is probably made for a small block Chev application, as is the bellhousing.

T-type and GN, all G-body 442 and the 83 H/O should be 8.5" inchers, it is the H/Os that some were 7.5" and the later ones were 8.5". Good luck, be sure to also look for RPO G80 as posis were optional on all cars, so IF you find an 8.5" it may still be an open rear

 

[roadvirus]

For the oldsmobiles it was 84 and up H/O and 442's that got the 8.5. Anything prior should have been a 7.5.

See http://tech.oldsgmail.com/axle_useage.php

 

[DrRansom442]

For the oldsmobiles it was 84 and up H/O and 442's that got the 8.5. Anything prior should have been a 7.5.

See http://tech.oldsgmail.com/axle_useage.php

whoops you are right I was off a year. I knew it was the 2nd year of the H/O and there was no 82