I had a '62 Falcon sedan delivery. I used an 8" from a later model Mustang...probably 86 or 87.

I cut all the four-link Mustang stuff off of it and went to the speed shop for some 3" axle mounting pads.

See, the diff in a Falcon delivery (and Ranchero) is mounted on leaf springs. The pads I got were for a Mopar, but they didn't mind being in a Ford.

Once you have it centered and have a good pinion angle, you weld the Mopar brackets to the housing and you're done.

The coolest part...the stock driveshaft and brake hose bolted right up. Just make sure to get the "flange" from the driveshaft on the 8.8".

Next part...if you are going to put a big, nasty engine in it...forget the leafs and go straight to a four-link subframe stub or a good set of ladder bars. The spring perches on the Falcon are weak and will rip out of the floorpan.

My Falcon was four-linked after destroying two rearends and ripping the perches out.

A 406 with a four speed will do that!!!

to fit the 406, I removed the shock towers and front suspension completely and used a front suspension from a Mustang II. It sits low in the car and doesn't interfere with how wide your engine is.

I could change plugs in 10 minutes with those towers gone.

This one is not mine, but you get the idea.....