Don't quote me, but I think some TD42s came out with a 4.8 diff which is what all the real mud sluts run.
4.1 (what I run, 33s, NA, TD42), 4.3 (??) and 4.6 (TD28) all common enough.
The 3.9 diffs were on petrol autos and...you don't want them.
But yes... probably more suitable to upgrade the donk. "slap a turbo on it"... or upgrade to the qd32, or td...
Reply With Quote