Originally Posted by 04RangerDave
Went and looked at a Level 2 today needless to say i saw the axle code was R8 i cant find any info on what it actually is, never heard of this... Anyone know ?
Some references list the R8 as a 4.56 LS but that ratio was never an option on any U.S. spec production Ranger.
In 2008~2009, Ford added the R8 Ranger code for the 4.10/31-spline/3600lb 8.8" axle w/Torsen geared LS that was an option in those 2 years on the FX4 Off-Road. For those same two years, the 4.10/28-spline/2750lb 8.8" axle w/Traction-Lok clutched LS used code R7.
[For 2002~2007, The R7 code applied to any 4.10 limited slip 8.8 regardless of whether it was a 31-spline/Torsen or 28-spline/Traction-Lok. Before that, R7 was for the 4.10 Traction-Lok only.]