round 2, 3:70's - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

oldman14ss · 07-09-2020, 11:34 PM

here I go again. and this time I'm extremely confident in the workmanship. 3:70's installed on trutrak once again pinion : no shims? anyone heard or that? backlash set at .003 thousandths. near perfect heel and toe. and drive and coast. using the black poly bushing on my punkin and swapping out the reds. ol' fat ass is gonna be on his back this weekend under my car with the wonderful Missouri humidity dripping down my.... eyes as well as everyplace else. 99* degrees. so hot the flies wont even land. the oldman....

pnwdan · 07-09-2020, 11:35 PM

Quote:

Originally Posted by oldman14ss

here I go again. and this time I'm extremely confident in the workmanship. 3:70's installed on trutrak once again pinion : no shims? anyone heard or that? backlash set at .003 thousandths. near perfect heel and toe. and drive and coast. using the black poly bushing on my punkin and swapping out the reds. ol' fat ass is gonna be on his back this weekend under my car with the wonderful Missouri humidity dripping down my.... eyes as well as everyplace else. 99* degrees. so hot the flies wont even land. the oldman....

I have heard that GM cuts its tolerances so close that nothing needs to be shimmied with GM parts. My 3.91s went in that way too.

oldman14ss · 07-14-2020, 02:30 PM

well,well,WELL! got my diff installed sunday. did the one axle pull method discussed here. I bought a harbor freight transmission jack, and used it to lift the diff. then I lined up the driveshaft and put 2 bolts in to stabilize. worked great. finished my reinstall in about 6 hours. I know, but I'm not as flexible as I used to be and I'm on my back. the weather was great also. lord was looking at me. dropped her down. went in cleaned up and went for my first ride again. the story goes as follows; NO EVENTS!! fantastic! finally found someone in the area that knows what they were doing! no whine, no grind, no whirling sound. no,none,not, nothing! I am so impressed with this set up I could just S**T. the guys did great! 178 calm miles heat cycles, cool downs,etc.. no steady speeds, up and down shifts varying speeds nothing excessive. no burn outs just yet. and all is quiet. I'm telling you all when you get rear end gears changed there should be no noise, drive or coast from the start. don't let them fool you, I was. and paid dearly for it. also my pinion required NO SHIMS and .004 thousands back lash spot on as shown in the AAM install sheet. party on!!! the oldman...

15RS2NV · 07-14-2020, 02:44 PM

@pnwdan Are your 3.91s in the SS carrier? I'm looking to upgrade my read diff and thought only AZ1 would allow 3.91. That'd sure make finding one a whole lot easier is the SS does. The lowest the V6 diff holds is 3.55.

BTW, i used to live in Puyallup before moving to southern AZ.

gtstorey · 07-14-2020, 02:54 PM

Quote:

Originally Posted by 15RS2NV

@pnwdan Are your 3.91s in the SS carrier? I'm looking to upgrade my read diff and thought only AZ1 would allow 3.91. That'd sure make finding one a whole lot easier is the SS does. The lowest the V6 diff holds is 3.55.

BTW, i used to live in Puyallup before moving to southern AZ.

RDPstore list 3.91 for the SS

https://www.rdpstore.com/p-9838-gm-p...-19329768.aspx

15RS2NV · 07-14-2020, 03:25 PM

Nice! Thanks @gtstorey

pnwdan · 07-14-2020, 05:12 PM

Quote:

Originally Posted by 15RS2NV

Nice! Thanks @gtstorey

Sorry. Didnt see your reply. Yes I have my original SS carrier. GM 3.91 gears installed without shims as well.

07-09-2020, 11:34 PM	#1
oldman14ss Drives: 2014 1ss camaro Join Date: Jul 2017 Location: missouri Posts: 705	round 2, 3:70's here I go again. and this time I'm extremely confident in the workmanship. 3:70's installed on trutrak once again pinion : no shims? anyone heard or that? backlash set at .003 thousandths. near perfect heel and toe. and drive and coast. using the black poly bushing on my punkin and swapping out the reds. ol' fat ass is gonna be on his back this weekend under my car with the wonderful Missouri humidity dripping down my.... eyes as well as everyplace else. 99* degrees. so hot the flies wont even land. the oldman....

07-14-2020, 02:44 PM	#4
15RS2NV Ponies are for girls Drives: 2015 RS LFX Red Hot A6 Join Date: Sep 2018 Location: Southern AZ Posts: 315 View My Garage	@pnwdan Are your 3.91s in the SS carrier? I'm looking to upgrade my read diff and thought only AZ1 would allow 3.91. That'd sure make finding one a whole lot easier is the SS does. The lowest the V6 diff holds is 3.55. BTW, i used to live in Puyallup before moving to southern AZ. __________________ H&R 1.8/1.7” drop, Overkill 80mm + intake ported by AFS, 1" insulator MACE, Accel Super Coils, THR cai, JET MAF sensor, Hurst shifter handle, GPP strut tower brace, CI ice cube tray hood vents (functional) @SemperFiCamaro

07-14-2020, 03:25 PM	#6
15RS2NV Ponies are for girls Drives: 2015 RS LFX Red Hot A6 Join Date: Sep 2018 Location: Southern AZ Posts: 315 View My Garage	Nice! Thanks @gtstorey __________________ H&R 1.8/1.7” drop, Overkill 80mm + intake ported by AFS, 1" insulator MACE, Accel Super Coils, THR cai, JET MAF sensor, Hurst shifter handle, GPP strut tower brace, CI ice cube tray hood vents (functional) @SemperFiCamaro

07-14-2020, 02:30 PM	#3
oldman14ss Drives: 2014 1ss camaro Join Date: Jul 2017 Location: missouri Posts: 705	well,well,WELL! got my diff installed sunday. did the one axle pull method discussed here. I bought a harbor freight transmission jack, and used it to lift the diff. then I lined up the driveshaft and put 2 bolts in to stabilize. worked great. finished my reinstall in about 6 hours. I know, but I'm not as flexible as I used to be and I'm on my back. the weather was great also. lord was looking at me. dropped her down. went in cleaned up and went for my first ride again. the story goes as follows; NO EVENTS!! fantastic! finally found someone in the area that knows what they were doing! no whine, no grind, no whirling sound. no,none,not, nothing! I am so impressed with this set up I could just S**T. the guys did great! 178 calm miles heat cycles, cool downs,etc.. no steady speeds, up and down shifts varying speeds nothing excessive. no burn outs just yet. and all is quiet. I'm telling you all when you get rear end gears changed there should be no noise, drive or coast from the start. don't let them fool you, I was. and paid dearly for it. also my pinion required NO SHIMS and .004 thousands back lash spot on as shown in the AAM install sheet. party on!!! the oldman...