Hey, I have a 1994 GMC Jimmy 4 dr. 4x4. I'm about to put 34"x15"x12.5" tires with a 5" Trailmaster suspension lift on it. What I need to know is:

What size rear-end does my model have so I can get new gears?

What kind of gears should I get (4.10, 4.56, etc.) for the tire/lift size I'm gonna get???

Where should I get them???

THANK YOU! Please reply or email cowgirlblue09@yahoo.com!!
-Tara :)