Swapping transmissions,going from a 2004r with 2.56 gears to a th350 that had 3.55 gears.I want an accurate speedometer when the cutlass goes back on the road,i need to know what color gear i need for 2.56 gears for a th350 and also the color gear for a th350 with 373s.I also want to know if these gears are transmission specific,or if i can use the 2.56 geared one in the th350
