Does anyone know what year and model sub frame would work on a 66 F100? I just bought a 1966 custom cab and my nephew told me I should lower it by using a camaro or nova sub frame this would also update to disc brakes as well as power steering. Any comments would be helpful as I don't really want to cut the frame up if I don't have to.

 

If you're gonna go GM then your best bet would be the camaro, my kid brother just did that to his 56 chev truck. But on the other hand if you want to keep everything FoMoCo, then look into a Mustang II IFS subframe, They sell the kits somewhere, with disc brake setups also. If I find the website I'll be sure to post it up for ya.

Phil

 

I think doing a subframe on a Twin I Beam makes more problems than it solves.
Disc brakes are easily done with salvage yard FoMoCo parts.
Dropped I Beams are available. While they are not cheap, they are a bolt-in solution. Retrofitting another subframe is definately not.
Mustang II components are not heavy enough to be safe on a truck this size, in spite of "kit" mfr claims.

 

as I don't really want to cut the frame up if I don't have to.

To install a GM subframe, you have to whack the frame completely off about even with the firewall. Then you have to install the front of the truck framerails to have the body and bumper mounts. Very hard conversion! I have a Camaro subframe on my 56 panel truck. The truck was converted 19 years ago and that was the trend then. I would never do another subframe again. There are way too many better options available.
Look at the top of the page where it says Articles/Tech. There are 11 articles in there describing what options there are for the 53-56 F100's. All of those articles are relevant to a Slick as the frame width is the same. Easist for a experienced fabricator would be the (in order) JAG, Aerostar, or Volare'
Oh, excuse me, welcome to the club! Let us know what you do after viewing the options. There are members here that can help with most of the questions these trucks generate.

 

Bodyman,
1st welcome to the 61-66, FoMoCo, F Series, truck forum. As our moderator likes to point out, the Nations Information Ford truck stop. . .
I was going to pass on answering this, but I will offer this reply instead. . . . I agree completely with ddavdiv. He knows what he's talking about and has a proven track record to that effect. If you are looking to slam it in the front adding GM stuff is NOT the way to go, nor is whacking up your OEM Frame to add something else as another afterthought addition.

Use the dropped I Beams available from aftermarket sources. Add 73-79 type PDBs while you're at it. Then you'll have a relaible trouble free modification that can be done in a day of so, with the right resources. Putzing around building frames and/ or chassis systems is not a realm of the novice or home DIY' er. One really must have knowledge, skills, facility, equipment, and experience to build or modify a frame/ chassis correctly. I am basing my response on the presumption that you do not have all it would take at your disposal, otherwise you'd probably not be asking this question or seeking advice.

IMHO, the FoMoCo Twin I Beam "IFS" system is superior to the ball joint & A Frame suspension designs GM Uses, and other systems not built for your specific application, which you would have to "adapt" to apply, are not the answer either. Go with what works well, or leave it alone.

Changing stuff for the sake of change is always a bad idea in my opinion. If I change something my change(s) must improve on the original in all ways applicable.

FBp