Axle code
#1
#3
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.]
Last edited by V8 Level II; 12-14-2011 at 02:06 PM.
#5
#7
there's always the possibility someone had it made that way, either they knew someone who knew someone or had money. or swapped in a newer axle or something. I would say that if it says R8 its a l/s 4.56 regardless what was officially available. as to how it got in their, there's any number of possibilities. suffice to say, its rare.
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