If anyone is interested I have the parts to make Ford nine inch IRS for original's, shelby's, kirkham's or any car that uses the original parts. Complete rearend your choice of gears would be around $3000.00. This would include everything to the yokes for the half shafts. There are alot of benifits to this set up hp/torque, cost, speed to change raitos (about an hour with a spare third member) and part are very available new and used depending on the budget. For $5000.00 you could have the housing and 3 third members with different ratios. If anyone is interested drop me a line at
mknos@att.net or call @ 602-400-7725
Thanks,
Mike