quote:
GM 3/4 and 1 ton 4x4's with the older IFS (89 to like 99 I think) have a track wider in the front than the rear...at the right angle they do look like they are crab walking...
This was the case for the solid front axle trucks too (at least for the 10 bolt and D44 fronts, not positive about the D60s). There has to have been some reason for this given that it persisted through several generations of 4wd front end design.
When folks with 73-87 4wd 1/2 tons or K5s want to swap the rear axle with a 14 bolt for durability off road, many like to try to find a 14 bolt full floater from a 1 ton G-van. Those are wider and make the track width the same front and rear.