Rear end ration
Rear end ration
Post Fiend
Joined: Dec 2002
Posts: 6,245
Likes: 1
From: IL, USA
Rear end ration
Look at the tag on the rear differential cover.
The second line should be what starts with the gear ratio. For Example if it was a 3.73 open diff the second line would start 3 73. If you had a limited slip it would start 3 L 73. Or, 4 30 for open 4.30s or 4 L 30 for limited slip 4.30s.
Just FYI, sometimes the first number is covered up by the diff cover bolt so you might just see a L 30 for example.
Hope this helps.
The second line should be what starts with the gear ratio. For Example if it was a 3.73 open diff the second line would start 3 73. If you had a limited slip it would start 3 L 73. Or, 4 30 for open 4.30s or 4 L 30 for limited slip 4.30s.
Just FYI, sometimes the first number is covered up by the diff cover bolt so you might just see a L 30 for example.
Hope this helps.
Tuned
Joined: Apr 2003
Posts: 394
Likes: 6
From: SEVA
Rear end ration
If all you pull is 6K#, the 3.73 would be best simply for the MPG. 6K# is next to nothing for the X. I pull just over 5K pounds of car trailer and hardly feel it back there with my 6.8L V10 and 3.73 gear.
Just my 2-cents worth.
Just my 2-cents worth.
