I'm out right now (well, OK, RIGHT now I'm having coffee and wasting time here) lopping the control arm mounts off the '94 Roadmaster wagon rear axle I bought a month ago for the '51 Pontiac wagon. It's been in the back of the truck this whole time, I'm tired of lugging it around... Anyway, I'm cutting the upper mounts of the center housing with the Sazall, and I noticed the little aluminum tag on one of the rear cover bolts. Sure enough, this IS a Posi rear! I didn't look it over when we loaded it, just dumped in the pickup. The little tag, advising to fill with Positrac lube only, was folded up tight against the rear cover, caked with crud. Didn't notice it, but it's a nice bonus. Cash for Clunkers, thank you!
That's cool! Always fun to find extras in a buy! Pull the cover and check it out. I am wondering what type of posi it is. John.
GM calls it "Limited Slip". This the second one of these I've scored from late model full size wagons for cheap. This one was $250. The other one is under the '36, it's from a Caprice wagon, a '92 or '93. Paid $140 for it.
I love deals like that....I drove a crown vic for years...and due to that experience knew that all of the cars my departement bought were the El Cheapo standard vic....not the police package vic....so when I found a burned out vic (from my department I might add) in the local pick apart with a width that was a tad too long but would work I found out the asking price ($90) The car had 20K on the clock and was a year old at the time (I had to pry the burned plastic off the guage face) Turnes out when I got it home and was going through it my department bought 12 police interceptors for the K9 units....this was one of em, hadda full posi with 31 spine axels.... I was pleased and the rearend still resides in my truck....
Exactly what I was thinking. Didn't want to downplay his score. Just don't know what is in there 'till it's opened up!
I think you'd loose that bet! It is very likely not a Eaton Gov-lock "gov bomb" rear end they put in the trucks and vans . I've had several 94-96 LT1 B-body cars (impala/caprice/roadmaster). All but one of mine were equipped with the G80 Limited Slip cone clutch type Auburn unit. I beat the hell out of all of them, (and so did every law enforcement department), in all the B-bodies I've been around at club events etc I've never seen one equipped with the "gov bomb" rear end. I will say that I wore out the clutches and carrier in one G80 after 137,000 hard miles. Here is a quick link for some additional information http://www.impalassforum.com/vBulletin/showthread.php?p=2182604
I'm very happy to add that the one behind the VERY healthy Cad 472 under the '36 appears to bullet-proof. It's often the subject of, ahh, shall we say "spirited" acceleration? It's the same one that's under the old Impala SS cars, of which my brother had one of, and I've never heard of any problem with them.
Want to find out if it's really a limited slip diffy?? Spin one axle by hand forward or reverse. If the other axle spins the same direction, your in like flint!! If it doesn't, it's a legged rear end.
Yup. 5 on 5. Which means, my original wheels will bolt right on. It's the same width as the original. It's now ground smooth, blasted, primed and painted. I thought I'd get it under the car this afternoon, but, evidently, I don't work as fast as I used to... Oh, and there's no doubt about it being a limited slip.
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