I just did the Granada swap (disc brakes). I bought a set of 5 lug wheels with tires on them already, so I now have two 5-lug rims up front, and two 4-lug rims in the back. All of the tires are 215/60/14, I had the aligment done to +2.5 caster, 0 camber, 1/8" toe-in.
Anyway, when Im driving around at above 40 MPH, the car weaves around from side to side, it definitely feels like the tires are messed up somehow. I have new tires in back, and old tires up front. The only other thing I can think of is that the wheels have a little more backspacing than the rear tires. The front tires stick out more than the rear, but probably not more than 1" on both sides, could this be causing the weaving problem??
Anyway, when Im driving around at above 40 MPH, the car weaves around from side to side, it definitely feels like the tires are messed up somehow. I have new tires in back, and old tires up front. The only other thing I can think of is that the wheels have a little more backspacing than the rear tires. The front tires stick out more than the rear, but probably not more than 1" on both sides, could this be causing the weaving problem??