Frank. If you indexed your marks correctly I can't see how you lost 1". But as long as the rear end is square in relationship to the frame, I don't think that 1" is going to cause any problems except with the length of the drive shaft. I'd leave it like it is now. Just make sure your bump ...

I just did the rear axle flip on my sons 64 but before cutting any notches I wanted to check the centering of the axle comparing it to the marks I had down on the frame. It seems that the axle now sits 1 inch ahead of the centerline marks, I can drill a new hole in the axle saddles moving everything...

Thanks for your responses, there's a lot I'm learning about these trucks>

This has probably already been discussed before and if so please forgive my ignorance. The PO of my sons 1964 f100 had installed a 302 engine in the truck but added an extra under engine cross member to mount the engine, he installed it about 4 inches above the front axle and built his own frame mou...

New guy here from Tucson, AZ (Dry heat here, oven compared to a sauna) I found your site by accident and I'm glad I did, my son and I both own 1964 F100 short beds. Both trucks are work in progress while his is a driver but mine is completely torn down to bare frame. We both enjoy the site and find ...