[Tater29]

I have a friend who also owns a '66. His back wheels are 10". The biggest I could make fit under mine were 8" rallies. He swears there are no modifications done to his wheel wells. Does anyone know how he done this? He bought the car with the wheels on it. It's not where I can look at the car, he sent me pictures, but I can't tell.

 

[pist0lpete]

I am not sure about 10 inch wheels i think it could be possible would definitely be a tight fit. I have a 67 with Torque Thrust IIs on it that are 8" with 255/50s. I want to say the backspacing is 4.75 i think 4.5 can work but is a tight fit. Maybe with a little hammer modification the 10 inchers could work.

 

[Rowdy]

Several years back, I had Weld Draglites (15 X 8) 4.5" backspace with Mickey Thompson Indy Profile S/S N50-15 (27.5" tall, 11.8" tread width) on the rear of my '66. I also still had the polished wheel opening moulding, at first glance it looked unaltered and everybody that knew better had to poke their head under there. I had ground the lip across the top, stopping just short of the moulding mounting holes. If I had 4 passengers and hit a hard bump while turning they would rub. I would have to say that these were about the biggest tires that a '66 could swallow, 1/2" or so off the outside and I could barely put my finger tips between the inner well and the tire.
With the rearend dropped over the tires, I switched to the L60-15's (28" X 9.5").

Just my experience, hope it helps

 

[pist0lpete]

Im sorry i just realized i failed to mention my Torque Thrusts are 17x8 maybe that will help.

 

[David Bates]

I have Nitto 555 P285/40ZR-17 on 17x9.5 Fikse Profil 5S wheels with 5.625" (5-5/8") back spacing on the rear of my 65 El Camino and they fit just fine. I had planned on 17x10 with 5-7/8" B.S. originally but ultimately decided against it. I have no rubbing/interference issues at all even under hard cornering.

 

[TW]

When you get over 8 inch wide on the rear you really need to pay attention to the backspace and test fit/measure the clearance BEFORE mounting tires on the rims. I have 17x9's on the back with no clearance issues. the rims are 5.5" BS. Not all cars are exact. When I mounted mine I had to loosen all the body mount bolts and shift the body to one side to even out the space on each side. I was intending to go to a 17x10" rim, but they were not available in the rims I bought. I'm actually glad I didn't. They probably wouldn't have rubbed, but why bother if I didn't need to?

Tom

 

[1hot67]

I've got 10's on the back of my car with no modifications. It's all in the backspacing.