Genuine Chevrolet Caprice Differential Seal

Chevrolet Caprice Differential Seal Parts Questions & Answers

• Seal,Differential Drive Pinion Gear
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  Q: How to replace a pinion seal on Chevrolet Caprice?

  A: Place the vehicle over an inspection pit or raise the rear end to provide adequate working clearance. Disconnect the driveshaft and tie it to the body sideframe. Using a torque wrench, check the torque required to rotate the pinion and record this for use later. Scribe or punch alignment marks on the pinion stem, nut, and flange for reassembly. Count the number of threads visible between the end of the nut and the end of the pinion stem and record for use later. Use a suitable tool to hold the pinion flange still while removing the self-locking pinion nut. Unscrew and remove the pinion nut. Withdraw the companion flange using a two or three-legged extractor if necessary. Pry out the old seal and discard it. Lubricate the lips of a new seal with extreme pressure lithium-based grease and tap it into position. Align the mating marks and install the companion flange, using a spacer if needed. Apply a non-hardening gasket sealer on the ends of the splines in the center of the companion flange. Install the thrust-washer and nut, tightening carefully to expose the original number of threads. Measure the torque required to rotate the pinion and tighten the nut slightly until it matches the recorded figure. To compensate for the new oil seal, further tighten the nut so that the rotational torque of the pinion exceeds the recorded value by 1 to 5 in-lb. Reconnect the driveshaft, install the brake drum and wheel, and lower the vehicle.