Post by
Desert Rat »
https://forums.nicoclub.com/desert-rat-u54558.html
Mon Sep 13, 2010 7:41 am
There are A-arm lifts for these that include longer upper control arms that retain front end geometry after a 2-3" torsion bar crank, and AAL/Shackle lifts for the back. At best these lifts give you a couple inches. Unfortunately, they don't do much for allowing bigger tires, as the uptravel is still the same as stock. Fender trimming is pretty easy on a D21, and is only needed on the front. Running rims at or near factory back spacing will also allow a bit bigger tire. Conceviably with a little trimming and one of these A-arm lifts, you could run 32x11.50s on stock rims without issue. Add a body lift to this and you could go up to 33x12.50s, typically. With stock gears and engine, power will suffer badly with anything larger anyways.
The 4" lift out there is the old Trailmaster lift that drops the torsion bar mounts and axle.
Either solution will eventually require a steering upgrade, and this is where it can get expensive. The stock centerlink configuration doesn't lend itself well to lifts and steering failures are common on lifted trucks. Calmini offers the only full steering solution for a D21, however there are others out there by Garage fabricators that install spherical bearings in the centerlinks so they don't twist under the increased leverage of a lift.