Part Description BACK Meritor/Rockwell 40-145 (Stock # WB-855) Front Rears (Tandem Front) $1,250.00 Quantity 1 Add to Cart Part Type Front Rears (Tandem Front) Axle Spline Count 41 Core Charge 650 Ratio 2:80 Differential Make (Front) Meritor/Rockwell Differential Model (Front) 40-145 Condition Used Description GOOD USED 20-145 FRONT/REAR POWER DIVIDER LOCK ONLY 41 SP 2:80 RATIO.