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Alpha Diff Regear: 4.10 to 4:56

lsv_palana

Well-Known Member
Messages
383
Location
Kamchatka, Russia
Dear friends. Happy new year. Does anybody can help me ? I need to regear my both axles from 4.10 to 4 56. I have stock rear axle and stock isf front with eaton locker in it. In rear and in the front. I can not buy ring and pinion on ebay because ebsy offers only just ring and pinion, but i need as i understand bearings, crashibg shimmers, shimmers and any other stuff. Can anybody can make a complete kit for me and send it to Russia ? I can pay via paypal or visa. I asked everyone, but mostly 4speedfunk . I think he is most good in this question. Sorry for bad english.

Main spare part for my Hummer while off-roading - sattelite phone !
 

alrock

El Diablo
Staff member
Messages
10,677
Location
Scottsdale
Why not look at Randy Ring and Pinion? Google them, bet they can help

Sent from my SM-N920V using Tapatalk
 

lsv_palana

Well-Known Member
Messages
383
Location
Kamchatka, Russia
Thank you. Just writed a message to them. Doy you know why so big difference in price between youkon or usa standard r&p with stock gm ? Are stock gm three times better ?

Main spare part for my Hummer while off-roading - sattelite phone !
 

lsv_palana

Well-Known Member
Messages
383
Location
Kamchatka, Russia
Hello again, friends.
As i said i write a message to Randy Ring and Pinion. But i did not get answer. Lately i write messages to motive gear, but no answer. Maybe they did not answer to customers from Russia ?
Here is my message to Randy R&P:

Hello dear friends. I have hummer h3 v8 5.3l 2008 with 4.10 gear ratio ring and pinion in front and rear. I have stock axles. I have Eaton locker in front and rear. I have installed Rancho lift kit and now I use 35 inch tires. I need to replace my ring and pinion to lowest possible ratio. As I understand for my hummer h3 it is 4.56 for front and rear.
I can not buy ring and pinion on ebay because ebsy offers only just ring and pinion, but i need as i understand bearings, crashibg shimmers, shimmers and any other stuff. can you make a complete kit for me and send it to Russia ? I can pay via paypal or visa. Thank you.

Vin number of my car: ADMEN13L584468087
Three years ago i break front ring and pinion and change ftont axle to new one gm stock 2009 with 4.10 and eaton locker in it. New axle is the same as older but with Eaton locker in it.

Maybe anyone can route my message to ANY dealer who can put all i need in box and send it to Russia ? Thank you. Sorry.


Main spare part for my Hummer while off-roading - sattelite phone !
 

4speedfunk

Well-Known Member
Messages
4,250
Location
Tardville
lsv,

Below is the parts breakdown from the AAM website. These include the original 2-cut ring & pinions. In some cases you may be forced to buy aftermarket gears and most of those (Yukon & USA Gear) will be 5-cut ring & pinons. Both are acceptable but require different lash settings. AAM used to offer a complete rebuild kit for the 7.6 IFS...and it came with everything except bearings. I do not see that large kit listed anymore. Instead there are several smaller "sub kits" offered for different parts of each diff. You will need shimmers for both axles and those are readily available from any state-side source. The only special thing I mention is that the pinon bearings on the 2009-up rear axle are larger, so make sure you order the 2009-up bearings. The remainder of the rear axle parts are the same back to 1999. All of the 7.6 IFS parts are the same from 2006-2010, and many of the parts are the same used on the rear version (GM 7.5" 10-bolt) offered all thru the 70s & 80s.

To swap gears, you will need: 4.56 ring & pinions and crush sleeves, at the very minimum. You may also need: bearings, ring gear bolts, pinion sleeves, shims, pinion seals, and front CV shaft seals. In addition you will need some special tools...dial calipers, inch-lb gauge, torque wrench, marking compound, hydraulic press, and several brass drifts to install the new races into the castings. A big hammer and a 1-meter breaker bar is also very helpful.

GM 8.6" 10 bolt rear (2009-up takes larger pinion bearing)....
http://www.demandaam.com/axle-results?vm=GM&q=8.6"+10+Bolt+-+Rear+Axle

AAM 7.6" IFS front (same for all years)....
http://www.demandaam.com/axle-results?vm=GM&q=7.6"+IFS+-+Front+Axle

FRONT BEARING KIT.... http://www.ebay.com/itm/OEM-Master-...ash=item210171fa56:g:hEYAAOSwBahVW2yQ&vxp=mtr
REAR BEARING KIT.... http://www.ebay.com/itm/One-New-USA...ash=item1e9da45772:g:wBgAAOSwPgxVN~9K&vxp=mtr
FRONT RING & PINION.... http://www.drivetrainamerica.com/40028609-gm-7-5-7-6-4-56-ratio-aam-oe-ring-pinion-gear-set/
REAR RING & PINION.... http://www.drivetrainamerica.com/40053802-gm-8-5-8-6-4-56-ratio-aam-oe-ring-pinion-gear-set/


EDIT: All of this can also be sourced thru a GM dealer if you have those in Russia.
 
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