I got 14" rims off of a junkyard mustang. I am happy with the fit. I stripped the rubber to clean them up and found that 3 were 6" wide. One was 6 1/2" The mustang owner needed a replacement at some point. Is this odd wheel going to cause me problems with ride or stability?
I would put the wider rim on the rear passenger side for a couple of reasons (if I were you and assuming you're using the same size tires on both axles). The passenger rear is usually the main drive wheel on a non-posi rear end. The wider rim will give you a slightly (I do mean very slightly) larger rubber contact patch for a given tire pressure. The sidewalls of the tire are wider apart thus flattening the contact patch (where the rubber meets the road). With left-hand drive cars (American) most drivers corner turning left faster and harder than turning right. The centrifugal force is greater on the body turning right vs. left giving you the
feeling that you are going faster turning right even though the car is going the same speed. It is human nature to go slower if it feels faster. If you lived in Great Britain, I would tell you to put the larger rim on the other side because they have the opposite effect with their steering wheel on the other side of the car. The wider rim will give the tire slightly better resistance to deflection or tire rollover and hence corner and wear a little better. Too much info I know but those are my reasons based on physics.
71HANTO