just get the code off of the right side axle tube. it will be stamped on the tube itself. three letters pm me the code and i'll look it up for ya.
Thanks guys. I posted on that site as well, no response yet. Flat-Top, I don't have a rear yet. I need to know what year's they were in so I know what to look for.
Do any of you guys know if you can get the 2 piece backing plates for these rearends? I know that you used to be able to get them for the G-bodys...
There is a code for the rear ends in the glove box sticker. Can't remeber which one is for the 3:73 gear. The best rear ends are out of ZR2's..... Well, at least those are the ones everyone is after.
82 to 93 is one style and then 94 till the end of the s-10 all s-10's could be ordered with 3.73 if wanted.
I'm running an '84 S10 rear end and it has 3:73's. Call Langdon at 1-586-739-9601. He's the one that put me up on mine.
If I remember correctly, the common gears were 3.42 behind auto ****** with 6 cylinder. And the 4 cylinder 5spd manuals were mostly 4.11.
The G bodys had that ****ty clip retainer for the wheel cylinder.The cylinder gets loose and eggs out the hole in the backing plate.They sold 2 piece plates so you didn't have to pull the axles.I've worked on a few S10's and they had typical bolt on wheel cylinders which don't get loose and mess up the backing plate.
I have a few of the ones you're looking for. Ranging from 3.08-3.73 with and w/o posi. Pm me with what you need. For what it's worth the ZR2 rear is wider than the standard 4x4 S10 rear. They are popular with the tri5 guys which has driven the price up.
Damn! All kinds of info. popped up since i left work. Spencer, thanks for the repost of great s-10 rear knowledge. Grimes, I'll p.m. you later when i get to work to see what you have. Cheers, Josh
Dorman 13706 is the 2-piece backing plate for Camaros, S10 Blazer, Firebirds, etc. with 9-1/2" brakes. I installed those on my Chevrolet S10 Blazer 4x4 when I installed a Powertrax No-Slip locking differential. Standard gear ratio for a S10 with a 4L60 overdrive automatic transmission is 3.42:1. You must remove the c-clips and axles to remove the old backing plates in order to install the Dorman 2-piece backing plates. That will be a good opportunity to install a Richmond Powertrax No-Slip Traction System. The Richmond Powertrax No-Slip differential acts similar to a spool and will push (resist turning) the vehicle in turns. It does not push the vehicle like a spool but it is noticable. If you get a axle housing with a RPO GU-80, Eaton Gov-Loc (locking differential) you should replace it with a Powertrax No-Slip 92-0776-2885 unit ($490-Summit) at the first opportunity. It is for GM 7.5/7.625" ring gear w/28-spline axles that were used from 1988-up (some 1988 axles were 26-spline.) The Gov-Loc differential is too failure prone to use in any kind of off-road or high performance application. The Gov-Loc is a unique design and works well for it's intended use. It is a locking differential which locks when one wheel spins 100 RPM faster than the other wheel then the differential unlocks and becomes a conventional differential above 20 MPH. The unlocking feature makes it like a conventional open rear end and therefore easy to drive on the street. Sudden torque application , especially with a manual transmission with uneven traction, can destroy the Gov-Loc like a grenade and take the axle housing with it. A engine with more than 300 HP can destroy a Gov-Loc differential. The Richmond Powertrax No-Slip Traction System is a locking differential and those type differenmtials are bothersome to some people, but there is no way to avoid that unless you use an axle housing that has a GM limited slip differential and use a synthetic friction modifier additive. The GM clutch type limited-slip will slip (disengage) the axles going around corners. The old additives that worked well were derived from whale oil . The governments of the world bannned harvesting whales, so GM had to design a locking differential that can be driven on the street. GM introduced the Gov-Loc for their regular production p***enger cars and SUV. The Gov-Loc and other modern locking type differentials only require regular GL-5 differential lubricant and do not require any friction modifier additives.
No need to dis***emble. You just dismantle the brake shoe/cyl ***embly, unbolt and carefully cut the old backing plate in two to take it off the housing Thats why 2 piece plates were invented...so you didn't NEED to take out the axles for the factory rust warranty recall that was on that backing plate. IF taking the axles out anyway...1 piece plates would have just been used.
Thats what I thought...I didnt wnat to take the axles out if I didnt have to...scored a 3:42 posi 4x4 rear for $75 from Kijiji
Hi, I know it's been several years since this thread was started, but does anyone know if the Dorman 13706 2-piece backing plates will work on a '99 4WD Blazer? If they will fit, then does anyone have a source for them? I am having a heck of a time attempting to find a set of 2-piece backing plates for this truck. It seems that they are only a figment of my imagination..... packrat
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