will a caprice or impala rear end work on a square body suburban?

any one know if they're compatible (same bolt pattern, width, etc)?  I've heard of people swapping them out due to the caprice/impala having disc brakes, and if that's the case, i'd really like to know because now is the time to do the swap.  Any info will be greatly appreciated.

Bolt pattern is the same,not sure on the width.

I've got a rear axle out of a 95 caprice, the bolt pattern is the same, but it's about 2 - 3 inches narrower, I haven't got an exact measurement. It's perfect if you're putting wider rims on the rear.http://policeinterceptor.com/95_9c1.pdf This is the car I got my axle out of.

thanks.  I did some research, and the track width is 2" narrower than the stock burb axle.  And the 9c1 is the police version of the caprice, had limited slip rear end and disc brakes.  Surely i should be able to find one of those in Dallas, right?

jumbo, let me know when you find a couple. Need em for my burban and crewcab

---------------------------------------------Originally posted by jumbo72  Surely i should be able to find one of those in Dallas, right?---------------------------------------------i have a friend that has i beleive 3 9C1 frames in the dallas area, now if he wants to part with one or sell just a rear end, I would have to ask him

if you get one out of a wagon they are 2" wider then the 9c1, you will have drum brakes on the wagon axle so thats a bad part about that.

Shouldn't be hard to find in a city that size.

does anyone have the exact width of the 9c1?

did a google search and found this from another forum Rear Axle Width Info Courtesy of Bill Harper Here's the axle width info from the 1996 FSM (94/95 may differ slightly as far as ratio to application): There are 3 different widths, 1566mm, 1598mm (both sedan), and 1642.5mm (wagon). This discussion is primarily about the sedan axles. I "believe" that the width dimension refers to the distance from axle flange to axle flange--without disc or drum thickness added on. The 1566mm axle (61.65") is used on 8.5" axle applications only, with both disc and drum brakes, depending on the car (taxi = 11" drum with 2.93 or 3.23, police = disc with 3.08 or 3.23) The 1598mm axle (62.91") is used on 7.625 & 8.5 applications, both disc & drum, 2.56, 2.93. 3.08 & 3.23. Impala SS is the ONLY 1598mm axle with rear disc brakes, and is the only wider axle that used 3.08 ratio. The difference in width between the 2 sedan axles is 32mm (1.26"), which means that a wheel mounts "at least" 5/8" further outboard (on each side) on the Impala SS than a 9C1. I say "at least", because, in addition to the width difference in the axles, there will be additional spacing of the wheel either by the thickness of a brake drum or a brake disc. I don't have a brake drum to measure, but I suspect that the rear brake rotor "hat" may be slightly thicker than a drum. If anyone can provide a drum measurement, I'll be able to compare them. That 5/8" is a lot of space to "close up" to get, for example, a 9C1 wearing Impala wheels, to look as broad-shouldered as the "real McCoy". It doesn't take very much change in the wheel/tire position at the fender edge to have a really dramatic effect on appearance. Spacers, anyone? Buick sedan axles are all 1566mm, 8.5" ring gear, all drum brake. 2 ratios available in 96, 2.56 & 2.93. Wagons are same as Chevy.