Quote Originally Posted by opie011 View Post
My 03 had the LS and had 3.73 gears.
That's odd. My 98 (2500 gas NV4500) and my 04.5 (CTD 5.9HO 48RE)both had LS and the only factory option to get LS was 4.10 gears.

Perhaps it was a later model year AUTO thing? Was your 03 a stick?