Tack Welding your Birfields

martackAnother Birfield Solution is to tack-weld on your axles. It keeps the axle from pulling too far to the weak outside of the birfield. It also increase repair speed on the trail because it elminates the need to pound the inner axle off of the birfield joint.

However, the mar-tack solution is not trouble free. This article explains that the 1-3/8 inch magical location for the tack welds actually led to seal and oil leaking problems because the truetrac differential he had was narrower than the stock differential by about 1.4 inch.

http://www.4crawler.com/4x4/CheapTricks/AxleRebuild.shtml#Martack

If it still sounds like something you want to try, heres how you do it:

http://www.island4x4.com/4x4tech/axle/toyotaaxletack/index.html