Thanks Bob, I have the truck posted on several websites ( I would post them but I dont know if thats allowed or not). I have a few magazines wanting to shoot it and put it in the mags but I need to paint it still. Power is 450rwhp and 850rwtq still getting 30+mpg's and loving it. And yes I get alot of naysayers (all gasser guys) that think that kind of power, tq and mpg's are impossible in a brick but the truck only weighs 3860 with me in it and those numbers have been verified over several thousands of miles. The ride is nice and smooth thanks to the 07 crown vic front end and 94 lincoln mark 8 IRS. I learned pretty much everything about the IRS I know from this site, lots of great tech here. thanks guys I love the site.
I still plan on opening the explorer, SC and lincoln pumpkins to compare things and just look around in general but I guess I will have to just rebuild the SC diff. I have been looking around for some 03 cobra axles and found some cheap locally, I read on here that you can use the 03 cobras if you mod the overall length a little then that would allow me to use the fresh explorer tlock and upgrade to the 31 spline carrier for a minimal cost.
I know eventually I will have to go to some DSS level 5 axles since the little diesel puts down alot of tq and now that I have a 6spd manual behind it I get some bad wheel hop. So far the IRS is holding up very well though, maybe its those skinny tractionless tires I keep on it that helps things survive. LOL
67 Ford F100 sc/sb 2wd 4BD1T w/HY35 & HX52 compound turbos, 370cc injection pump ( by Sheid Diesel), custom equal length header, T56 6spd trans, 07 crown vic front suspension, 94 lincoln mark 8 IRS with 3.08 gears & open diff, 4 wheel disc brakes ridin on 18's