Did the spider and side gear teeth shear off or did it take the axle splines off the side gear. Given parts availabilty, you could probably find another 7-1/4 easier than parts for one. What ratio is it? The real question here is, how much weight is there and how much power? The spiders are the weak link in these axles, and usually what shows trouble first. Finding an a body 8-1/4 is probably the best solution except it will have 5 on 4-1/2 instead of 5 on 4 bolt pattern. Here is what Randy's Worldwide has available on differential carrier interchange.
Diff Wizard | RANDYS Worldwide
