Part Description BACK Meritor/Rockwell RD20-145 (Stock # P-228179) Gear Sets Price to be quoted Quantity 1 Add to Cart Part Type Gear Sets Part# B-41678-1 Ratio 3.90 Differential Make Meritor/Rockwell Differential Model RD20-145 Condition Used Description USED ROCKWELL RD20145 GEAR SET WITH UN-LOADED CARRIER, PINION IS CHIPPED, RING GEAR AND CARRIER ARE GOOD. RATIO 3.90 R/G# 41678K, PIN# 42131K