It's worth swapping to the 2wd rear diff and shafts, 108mmCV's & 7.5" diff instead of the 4x4 100m cv's and 7" CWP diff. The Ratios are 3.64 2wd and 3.62 4x4, so it will work fine with the centre VC. Don't have to swap the rear beam either, just take a grinder to the 7.5" casing and shave a bit off, or just swap to a 2wd beam like I have. Lots more strenth fairly cheap , then whatever upgrades to the 2wd item you like