Rt frnt wheel vib starts around 35mph &

Have you had the wheel rebalanced? Also, you could swap it to the rear of the car. If the vibration goes to the back, it's a problem with the wheel/tire. If it stays, you have a suspension issue.

If it's the wheel/tire, check for a bend in the wheel, abnormal wear on the tire, proper tire pressure, and evidence of missing weights. Rebalance the wheel and if that doesn't do it, you'll need a new tire, possibly a new wheel if it's damaged.