: 9.5 14 bolt diff options


Ohnoitsa60
Dec-03-07, 09:04 PM
Well like it says just wanna give you guys options when you would like to upgrade the diff in your truck.
Diff is the same 9.5 they have used in 3/4 ton trucks since 1981.
Axle Shaft dia-spline 1.37 33 spline
Eaton options:
Detroit locker part# 225C135a
Detroit TrueTrac part# 914a538 (Eaton recommends this for street/strip upgrade for the lsd diff we currently have)
Eaton Posi part# 19590-010 (what we have stock)
Eaton E-Locker part# 19684-010

Auburn diff lsd part# 542087 (not a pro series diff and wouldnt be a good pick for a upgrade)

Arb Air Locker part# RD40 (Not a personal fav but the option is always there)

American Axle Manufacturing is working on some upgrdes to the 9.5 14bolt. I dont know what they are working on or what the upgrades are but they are using it in there H3 truck they are using in a off-road series.

Enjoy

thechad
Dec-04-07, 12:24 PM
Good info man. Thanks :)

bwl101
Dec-04-07, 10:54 PM
What gear ratios can we go to with these upgrades?

Ohnoitsa60
Dec-05-07, 05:18 PM
GM 9.5 Ring and Pinion Spec's
Rg diameter 9.5
12 12mm x 1.50 LH threaded bolts
Pinion Diameter 1.876 30 splines


Gear ratio's
3.42 AAM part# 74010559 GM#15286387 GM#26015981
3.73 AAM part# 74010556 GM#88965785 GM#26015719
4.10 AAM part# 74010553 GM#88967094 GM#26015982
4.56 AAM ??????????????? GM#14014946

Aftermarket Gears (Motive Gear)
GM9.5-342
GM9.5-373
GM9.5-410
GM9.5-456
GM9.5-488

Yukon Gear offers 4.30 gear sets I dont have part number for them though.

thechad
Dec-05-07, 05:23 PM
Again good info, I know this is a rear section but do you have any info on the front Diff ??

BRETT60SS
Dec-05-07, 05:24 PM
Again good info, I know this is a rear section but do you have any info on the front Diff ??

I'm curious too.

Ohnoitsa60
Dec-05-07, 05:47 PM
Well I have been working on that for the last couple of days. I have been told that it is a 7.25 and the only thing they for those is a Powertrax Lock-Right Locker.
http://www.powertrax.com/lockright.html

If someone could check the tag on the Front diff and give me the numbers I will double check and make sure it is the 7.25. It kind of sucks that no one makes a lsd for the front.

thechad
Dec-06-07, 04:16 AM
Well I have been working on that for the last couple of days. I have been told that it is a 7.25 and the only thing they for those is a Powertrax Lock-Right Locker.
http://www.powertrax.com/lockright.html

If someone could check the tag on the Front diff and give me the numbers I will double check and make sure it is the 7.25. It kind of sucks that no one makes a lsd for the front.

Thanks again bro. I'll put on my snowmobile suit later and check it out.:rofl: Where is this tag ???

thechad
Dec-06-07, 09:06 AM
Posted it under your other post in the AWD section. Thanks Again :)

Ohnoitsa60
Dec-06-07, 12:18 PM
lol....snowmobile suit, You got the snow to. (Chicago Here)

Replied to you postt in AWD section. Thanks for you help.

WILLIAMJRDN
Dec-10-07, 02:06 PM
What gear ratios can we go to with these upgrades?

you can run anything up to a 5.38

http://www.ringpinion.com/PartsList.aspx?SearchMode=Diff&TypeID=5&Type=GM&DiffID=48&DiffName=GM+9.5&CatID=10&CatName=Rings+%26+Pinions&CatType=Sub-Differential

Silver06SS
Dec-10-07, 10:05 PM
Well like it says just wanna give you guys options when you would like to upgrade the diff in your truck.
Diff is the same 9.5 they have used in 3/4 ton trucks since 1981.
Axle Shaft dia-spline 1.37 33 spline
Eaton options:
Detroit locker part# 225C135a
Detroit TrueTrac part# 914a538 (Eaton recommends this for street/strip upgrade for the lsd diff we currently have)
Eaton Posi part# 19590-010 (what we have stock)
Eaton E-Locker part# 19684-010

Auburn diff lsd part# 542087 (not a pro series diff and wouldnt be a good pick for a upgrade)

Arb Air Locker part# RD40 (Not a personal fav but the option is always there)

American Axle Manufacturing is working on some upgrdes to the 9.5 14bolt. I dont know what they are working on or what the upgrades are but they are using it in there H3 truck they are using in a off-road series.

Enjoy

I thought we had the Eaton E-locker in the TBSS....

thechad
Dec-10-07, 10:27 PM
I thought we had the Eaton E-locker in the TBSS.... I think the E's are only in the hummer and are electrically locked (like air lockers only electric) :dunno:

bwl101
Dec-11-07, 08:43 AM
you can run anything up to a 5.38

http://www.ringpinion.com/PartsList.aspx?SearchMode=Diff&TypeID=5&Type=GM&DiffID=48&DiffName=GM+9.5&CatID=10&CatName=Rings+%26+Pinions&CatType=Sub-Differential

Sweet... only $262... might wanna go with a 5.38 ratio... Imagine the launch you could get with a 3200 stall, DRs, and a 5.38 gear ratio... What else would I need to buy to do the swap, re-seal kit or somethin?

WILLIAMJRDN
Dec-11-07, 11:26 AM
Sweet... only $262... might wanna go with a 5.38 ratio... Imagine the launch you could get with a 3200 stall, DRs, and a 5.38 gear ratio... What else would I need to buy to do the swap, re-seal kit or somethin?

just another cover gasket (please don't tell me ur going to really do that)

bwl101
Dec-11-07, 01:14 PM
just another cover gasket (please don't tell me ur going to really do that)

LOL, why not, not worried about MPG, would make it launch a lot harder even without a new torque converter!

1GMfanatik
Dec-11-07, 01:21 PM
Maybe I missed it, but what is the RWD factory gear ratio?? 4.10??

bwl101
Dec-11-07, 02:48 PM
Maybe I missed it, but what is the RWD factory gear ratio?? 4.10??

Yep...

1GMfanatik
Dec-11-07, 04:44 PM
Damn I'm good, that was a wild guess. lol

Ohnoitsa60
Dec-12-07, 05:57 PM
Sweet... only $262... might wanna go with a 5.38 ratio... Imagine the launch you could get with a 3200 stall, DRs, and a 5.38 gear ratio... What else would I need to buy to do the swap, re-seal kit or somethin?

LOL.............
Oh I hope you dont dd this.
Anyways I would get Master Install kit. I know the bearings you have only have so many miles but it is just cheap insurance. USE TIMKEN BEARINGS!!! You will also need to tune for gears.

Ohnoitsa60
Dec-12-07, 05:58 PM
If you need I could post what bearings and seals that are in these rearends I can.

thechad
Dec-12-07, 06:11 PM
If you need I could post what bearings and seals that are in these rearends I can.

I always like to have more info at my finger tips. Post on

WILLIAMJRDN
Dec-12-07, 06:26 PM
LOL.............
Oh I hope you dont dd this.
Anyways I would get Master Install kit. I know the bearings you have only have so many miles but it is just cheap insurance. USE TIMKEN BEARINGS!!! You will also need to tune for gears.

brett has a beater so he don't have many miles i think

bwl101
Dec-12-07, 10:42 PM
If you need I could post what bearings and seals that are in these rearends I can.

That would be great if you could do that... and don't worry, I only go with Timken bearings if I have a choice, my uncle is a product manager for Timken...

bwl101
Dec-12-07, 10:43 PM
brett has a beater so he don't have many miles i think

Only prob is I got the beater in June and had the truck since March... Right now I'm sitting at about 15,500 having it since March...

ClawSS
Dec-13-07, 11:52 AM
Where are the ABS reluctor cogs on the TBSS? Is it a true 4wheel ABS system or is it a 3-wheeler like my Impala SS with a reluctor cog pressed on the pinion shaft?

BBA
Dec-14-07, 07:59 PM
Stabilitrak requires 4 wheel ABS.

Ohnoitsa60
Dec-17-07, 05:31 PM
Been real busy around the house I will post up the bearing numbers for you tomorrow.

bwl101
Dec-17-07, 08:01 PM
Been real busy around the house I will post up the bearing numbers for you tomorrow.

No prob, thanks a lot home boy!:cheers1: