The FRPP gears are made for our cars.The motive gears are made
with a weaker metal and the FRPP gears are made with a strong
metal.I have heard of people on other forums having problems with
the motie gears with gear whine and faster ring and pinion wear.
I wouldn't put those motive gears in my car on a bet.The FRPP ring
and pinion are proven to be the best on Ford cars period.
FRPP