OEM 2007 Chevrolet Colorado Transfer Case Seal

2007 Chevrolet Colorado Parts Questions & Experts Answers

• Q: How to replace the front output transfer case seal on 2007 Chevrolet Colorado?

  A: Draining the transfer case fluid is the first step when replacing the front transfer case output shaft seal so professionals can remove the front propeller shaft which requires complete bending of all stakes on the yoke flange nut. Begin by using a suitable punch tool to bend out the stakes from the yoke flange nut before using the flange and pulley holding tool (J 8614-01) to support the flange while loosing the yoke flange nut. The procedure requires workers to discard the yoke flange nut and o-ring seal together with the front output yoke flange. A flat-bladed screwdriver should be used to tap gently along the edge of the front output shaft seal so it can be removed from the transfer case. Use the front output shaft seal installer (J 37212) together with a hammer for installing the new front output shaft seal into the transfer case. You should install the front output shaft yoke flange on the shaft while applying transfer case fluid to the new o-ring seal before installation of the yoke flange nut and o-ring seal together. Utilize the flange and pulley holding tool (J 8614-01) to fix it onto the yoke flange before tightening the yoke flange nut up to 137 n.m (101 lb ft). The last step involves using a suitable punch to stake two points on the yoke flange nut before reattaching the front propeller shaft and adding fluid to the transfer case.