rear frame and axel

my ? is that i bought a rear axel for my mazda but iwant no how does ever one center the new axel under the frame i also have to build a new rear frame to put the 20s on it what should i do help please

if you are doing a new frame, then all you have to do is use the driveshaft to find where the axle should be, it should just be in the middle or extremely close in the wheelwells

my engine and tran is out already

You should have taken some measurements of your wheel base, or measure some reference points from the frame to the center of the old axle.

Here is my frame spec page.

B2200 / B2600i Frame Specs

If your particular frame isn't on there just let me know I have the diagram somewhere and can add it fairly quick. I'll be updating these again pretty soon with better pictures and additional measurements.

Edited: 10/14/2006 11:14:32 AM by TomKat

Do you have leaf spring mounts on your frame still? Bolt the rear end up to a good set of leaf springs and it will center itself if you jack it up and flex the springs a little and set it down.

Just measure from the inside rim of each brake drum , then measure the outside width of the frame, which should be on that link I think. Then subtract the frame width from the axle width (drum to drum) and divide by 2.

This should be the distance the inside of your drum should be from the outside of the frame on each side.

Doesn't really matter how you do it as long as you get the center of the axle in the centerline of the frame.

yep, just remember the pinion is offset lol.