Hello, no problem, here are the links:

GM 8.5 Detroit Truetrac Posi Differential 30 Spline 913A481 - Ron's Machining Service

*GM 8.5" 3.90 Ring and Pinion USA Standard Gear Set ZG GM8.5-390 - Ron's Machining Service

Unfortunately we do not have the studs.

Thanks, Ron
1-800-694-3098

 

Anyway I could get pricing or links for posi, 4.10's and install kit for a 10 bolt in my '90 2wd?

Thanks.

 

Hello, here are a couple of our most popular packages:

1990-1998 GM 8.5 Truetrac Posi 4.10 Gear Package 30 Spline - Ron's Machining Service

GM 8.5 Posi 4.11 Gear Package 30 Spline 1990-1998 - Ron's Machining Service

It would be a good idea to verify your axle spline count. There were some 1990 models that came with 28 spline axles.

Thanks, Ron
1-800-694-3098

 

pricing for a lock right locker p/n 92-0795-3305 please

 

Hello, sorry, we do not offer that part.

Thanks, Ron

 

Ron I have a 2004 Silverado 2500HD Duramax 4x4, I am looking for 4.30 or 4.56 front and rear gears with a tru trac. What kind of package do you have?

 

Hello, do you know which rearend it has? It could be a 10.5", 11.5", or dana.

Thanks, Ron
1-800-694-3098

 

Hi everyone, we are running some special coupon codes for the month of January. These codes are good through 1-31-14

RMS-15 ($15.00 off purchases $150.00-$249.99)

RMS-25 ($25.00 off purchases $250.00-$499.99)

RMS-50 ($50.00 off purchases $500.00-over)

Welcome to Ron's Machining Service | Gaines, MI

 

Pretty sure it's a 10.5, but how would I know for sure?

 

I will need to know the number of rear cover bolts and whether or not it has a removeable pinion support.

Thanks