what rear axle should i use ???

just curious on what rear axle i should be swaying towards and what majority of people use. i got a 41 chevy pickup

Welcome to CHR. It somewhat depends on what you are using the truck for. If you are putting in some big power, sticky tires, and plan on doing some racing a 9" Ford is the rear end most generally used. If it is just a cruiser, and 8" Ford would do fine. Chances are an 8" from a Maverick would be very close to the correct width.

Suspension Widths on this page ....joe

thanks guys that page had a lot of knowledgeable stuff