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rear diffs

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PsychoticDeadGuy

1/2 ton status
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Jan 8, 2005
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Fairfield, California
ok, last week i completely blew up my rear diff in my 10 bolt. it has the 8 1/2 ring gear and 28 splines. i have been looking for a rear diff at junk yards but i couldnt find any good ones. i dont want to spend any money really because i plan on dropping these axles out as soon as i find the 1 tons i want. but my question is, will the diff out of a 75/76 monte carlo work? my buddy has one down the street and i just have to go rip it out. no cost. does anyone know if it is the 8 1/2 ring gear with 28 splines?
 
I've got a dana 44 front and a 10 bolt rear with a limited slip for sale. dunno about a monte carlo
 
Unfortunately I'm not up on the "older" Monte's as much as the 80's, but I'm fairly certain that will be a coil sprung axle.

Probably a 10 bolt, but worthless to you if it's coil. Even with welding perches on it for the leafs, the width is probably different as well.
 
Throw me a range at what you're looking for... the limited slip makes it worth a bit more
 
dyeager535 said:
Unfortunately I'm not up on the "older" Monte's as much as the 80's, but I'm fairly certain that will be a coil sprung axle.

Probably a 10 bolt, but worthless to you if it's coil. Even with welding perches on it for the leafs, the width is probably different as well.
Click to expand...

all i needed to know is about the diff. i dont want the whole axle. i just need to take out the diff. it is a 10 bolt but are there other versions of the rear 10 bolt? i need to know if it has 28 splines and 8 1/2 ring gear?
 
Haha... didn't notice you were in Cali... I'm afraid with price of axel and shipping... you might as well go buy your one ton stuff...
 
AFAIK all the 10 bolt housings are the same, at least until VERY (2000+ or so) recently.

The two triangular projections on each lower corner of the diff will identify an 8.5" 10 bolt.

Don't know about splines, etc., check out someplace like jegs to see what posi units fit in what cars/trucks.
 
Don't be surprised to see 2.56 or so in it.

Not sure how far "down" the 8.5's went, they went to 2.29 on the 7.5" in the cars.

If you plan on grabbing it anyways, pop the cover and get the numbers off the ring gear.
 
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