I didnt realize that the 65's had 5 leaves.
On a 73-87 truck the standard stock spring was a 2 leaf spring & 3 leafs for heavy duty, and they were flat not arched. Same for the 67-72 trucks.
So im assuming the 60-66 trucks arn't too much different.
believe it or not,on a lift kit with this type of suspension you get more leaves up front.
I just looked at my 86, I have the same front end that is on that truck,but i have a 4 inch lift. I think its a combination of the backspacing of the wheel & the steering arm.
I noticed his wheel is a little past the backing plate compared to mine.
try another wheel & tire and see what happens.
Last edited by JeffL; 10/03/2012 7:10 AM.