Rearend ID
Thread Starter
Junior Member
Joined: May 2004
Posts: 2
Likes: 0
From: Thompson Ct
Car: 1973 camaro
Rearend ID
I recieved this rearend with a parts car, and need to identify it, so I can sell it. Can someone help me with numbers? I was told it was out of a 91, and is a limited slip 383. I dont know if this is correct, I want to make sure, before I put it on e-bay. I have not pulled the cover yet. I dont have a 3rd gen. car, and know nothing about them. Any help would be appreciated. Thanks
Supreme Member
Joined: Nov 2001
Posts: 2,743
Likes: 0
From: heartland
Car: 89rs (previous 2.8)
Engine: 406
Transmission: 700r4 (for now)
first count the bolts on the inspection plate..10 bolt..12 bolt 9 bolt..then pull the cover , count the teeth on the ring gear then the teeth on the pinion grear...divide the ring gear by the pinion gear and it will give you your ratio.
Thread Starter
Junior Member
Joined: May 2004
Posts: 2
Likes: 0
From: Thompson Ct
Car: 1973 camaro
Ok, here is what I found. It is a 10 bolt posi, with 323 gears. Any ideas on what it is worth? is setup for disc, with only the brackets there, and includes the sway bar. Anyway to find out what year it was in? Thanks
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
The exact year doesn't matter. But there are year ranges you can identify.
If it's a 10-bolt with discs, about all that matters is if it's got 26-spline axles or 28-splines (88-back or 90-up, 89 could be either), and which brakes it has, either Saginaw cast-iron (88-back) or PBR aluminum (89-up).
Since it has the caliper mounting plates on it, look at how the calipers mount. If both mount toward the rear of the car (opposite the pinion gear), it's for PBRs, and it's 89-up; if it has one to the rear and one to the front, it's for Saginaws and is 88-back.
You will DEFINITELY get asked what axle spline it has. If it has 28, it is considerably more desirable than 26, and will get a much higher price. The only way to know that is to pull one and count them. Obviously if it's set up for the iron calipers, one in front and one to the rear, it'll have 26-spline axles, and it's not worth much.
Measure it from axle flange to axle flange; if it's for a 82-92 car it will be about 56½". If it's for a 93-up it will be about 60".
If it turns out that it's really a 90-92 with 28 splines and set up for PBRs, it's probably worth around $250-300. If it's all early model stuff, probably $150 or so.
If it's a 10-bolt with discs, about all that matters is if it's got 26-spline axles or 28-splines (88-back or 90-up, 89 could be either), and which brakes it has, either Saginaw cast-iron (88-back) or PBR aluminum (89-up).
Since it has the caliper mounting plates on it, look at how the calipers mount. If both mount toward the rear of the car (opposite the pinion gear), it's for PBRs, and it's 89-up; if it has one to the rear and one to the front, it's for Saginaws and is 88-back.
You will DEFINITELY get asked what axle spline it has. If it has 28, it is considerably more desirable than 26, and will get a much higher price. The only way to know that is to pull one and count them. Obviously if it's set up for the iron calipers, one in front and one to the rear, it'll have 26-spline axles, and it's not worth much.
Measure it from axle flange to axle flange; if it's for a 82-92 car it will be about 56½". If it's for a 93-up it will be about 60".
If it turns out that it's really a 90-92 with 28 splines and set up for PBRs, it's probably worth around $250-300. If it's all early model stuff, probably $150 or so.
Thread
Thread Starter
Forum
Replies
Last Post
UltRoadWarrior9
Tech / General Engine
336
Apr 28, 2020 10:39 PM