doing an 8.8 swap, needing to know what fords have 4:10s

i just registered as a member. not sure the best way to go about checking, and also know this site is full of knowledgeable xj people. I have a 91 XJ and got 4:10s for my D30 for 40$! So what fords have 4:10s? so i can just got to pik-n-pull and spend under 100$ on gears! Thanks for the help, il be posting pics, if i can...

turn driveshaft and count the rotations of it per each full rotation of the tire.

pop the cover and count the teeth, or check the stamp on the ring gear

hope that there is still a tag bolted to the diff cover that tells you

Exactly what Ford vehicle did you pull your 8.8 out of? There are 28 and 31 spline axles as well as different widths. So knowing this makes it easier to tell you what to look for. Here's a great thread for the info on the popular Exploder 8.8 : http://www.greatlakes4x4.com/showthread.php?t=719