Locker installation 8.75" 741 Rear End

[al_wildman]

I bought an Eaton locker already installed in a Mopar carrier. I'm planning on installing my existing ring gear on the new carrier and then just worrying about the lash (since I'm not touching the pinion depth). From what I know, there will be no need to verify the gear mesh pattern, etc. Can anybody definitively verify or refute this approach?

Thanks

 

[Moparmatt72]

It wouldn't be a bad thing to just double the lash after you cross the gears over, technically if you use all the same shims you should be good

 

[al_wildman]

Thanks for the response. Did you mean "double check" my lash with a dial indicator? Since I'm not altering pinion depth, I'm not planning on checking the pattern.

 

[bm02tj]

If you are reusing gears if the pattern is not exactly the same it will be noisy

 

[al_wildman]

Nobody seems to understand my question. If I do not change pinion depth, is it necessary to use the pattern grease to verify pattern or not? I know I have to put lash/backlash back within specs.

 

[383man]

If you are using different gears then yes I would take a pattern reading even if you use the same shims over. If you can read the + or - numbers on both gear sets you will know if they are the same tolerance. You are also changing the pinion gear right but just using the same shims as I read it ? Ron

 

[al_wildman]

Hello, Ron.
No, I am using the same ring and pinion, just bolting my old ring gear to the new carrier, which already contains the Eaton locker plates and good bearings. I realize there will be manufacturing tolerance differences between the two carriers, but I'm thinking that is accounted for when you reset the lash/ backlash.

 

[383man]

Oh ok I thought you were using a different ring and pinion. I can tell you when I put my Detroit Locker in my 489 case 8-3/4 I did just what you want to do. I unbolted the ring gear from the carrier and bolted it to the new Locker carrier and put the carrier in the case and bolted it up. Thats all I did was take out the old carrier and bolt the ring gear on the new locker carrier and bolted the carrier in and set the carrier bearings preload and backlash. I did take a pattern and it came out good as I had set the rear up before to a good pattern and it came out looking the same and has been in the car about 5 years now. And it did not and does not make any noise. Good luck with yours , Ron

 

[splicer]

Did the same thing myself, Al.....when I took out an Auburn posi and installed a Detroit locker re-using original gears and leaving pinion assembly where it was...

Just CHECKED the pattern and set up the lash.....

Has been fine for 3 years...

Splicer