Copy/Paste from another forum (my post):
Let's clear this up.
Toyota Minitruck axles are wider than Samurai, by about 2 inches, and are narrower than Sidekick, by about 2 inches.
Stock Toyota front axle measurements for comparison:
55.5" wide, 29" spring perch centers, '79-85 Toyota trucks and 4runners
63.5" wide, (set up for coil springs) 90-97 FJ80 and FZJ80 Landcruisers
'86-95 IFS front end is about 58.5" wide
'93-98 T100 IFS front end is about 65" wide
Toyota Rear Axle Widths:
55" wide, '79-85 trucks/4runners
58" wide, '86-95 trucks/4runners
60.75" wide, '95.5-up Tacomas/4runners
66.75" wide, '93-98 T100 trucks
Sidekick is 57.5" wide.
So, let's say you want to run a samurai axle under a sidekick. Is a 4" difference, (2" on each side) going to be an issue for you? There are some people that have done this, using wheel spacers to get back the track width, but don't forget that a sidekick is a heavier vehicle, and take into account the scrape ratio while turning in the front using wheel spacers.
......OK, I've been told that a samurai axle measures about 51.5-6. If this is correct, then we're talking a 6" difference between a track-kick and a samurai.
I've seen people do it, just letting you know what you are getting into.
EDIT:
Also, FYI, putting a smaller axle from a smaller vehicle into a larger vehicle (especially a 4 door if you have one) decreases your turning ratio. (Sammy knuckle turning ratios suck. I went through this.)