Part Description BACK Meritor/Rockwell SRD (Stock # P-228441) Diff Misc Parts $2,105.26 Quantity 1 Add to Cart Part Type Diff Misc Parts Serial# T748 Part# 3891T748 Differential Make Meritor/Rockwell Differential Model SRD Casting# T748 Condition Used Description USED HELICAL PINION FOR SRDD ROCKWELL DIFFERENTIAL, 3891T748, RATIO 5.81 & 6.44