View Single Post
Old 02-27-2010, 11:04 PM   #2
rwgregory
Registered User
 
Join Date: Apr 2005
Location: Chula Vista, California
Posts: 495
Re: Rear End Numbers and Ratio

Sounds to me like you are looking at a Dana 44 rear axle with a 46 tooth ring gear and a 13 tooth pinion that would calc. out to a 3:54 rear end ratio. What it is doing under your truck is probably pushing it down the road with power from the engine and trans.
All kidding aside, GMC's came stock from the factory with Dana rear axles. 1/2 tons had Dana 44's and 3/4's came with Dana 60's.
__________________
rwgregory

67 GMC 2500 ,2w/d wide box
305 V-6, 4-speed
rwgregory is offline   Reply With Quote