Rear diff tag

Reply Subscribe

Thread Tools

Search this Thread

Sep 21, 2009 | 09:05 PM

green 69

Thread Starter

Mountain Pass

Joined: Sep 2003

Posts: 181

Likes: 0

From: Sunny SOCAL SanDiego Area

Rear diff tag

Hi there, is there anybody or any chart that breaks down the rear diff numbers..
S 409 E
3L73 10 5 9H27
I know its a dana and it has 373 ratio but what size of ring gear 10.5" 11.5"

Sep 21, 2009 | 09:26 PM

Izzy351

Post Fiend

Joined: Feb 2007

Posts: 14,541

Likes: 2

From: Dallas-Ft. Worth

Quote:

Originally Posted by green 69

Hi there, is there anybody or any chart that breaks down the rear diff numbers..
S 409 E
3L73 10 5 9H27
I know its a dana and it has 373 ratio but what size of ring gear 10.5" 11.5"

These are Sterlings (for the rear diff). 3L73 = 3.73 LS gearing, 10 5 = 10.5' ring gear... Duallies have big Danas back there...

EDIT: And here's a website with lots of diff info. Look at the tag in your door jamb under where it says "Axle" (it should say C1).
http://www.drivetrain.com/parts_cata...s_it_posi.html