GM 404294 Seal,Propeller Shaft Pinion Flange Oil

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To remove or install the pinion companion flange, align the driveshaft and the pinion companion flange before assembly in order to avoid mishits. Remove the driveshaft from the pinion companion flange by slackening the nuts securing it, hoist the propeller shaft on the body tunnel and fix it to the exhaust pipe by joining the wires. If the above joint bearing caps do not come with a retainer strap then the same should be fastened with the help of a tape. Subsequently, note the alignment of position of the companion flange, pinion shaft and nut such that when assembling it, it will achieve the correct pinion bearing preload. To remove the companion flange nut and washer, engage Tool J-8614-10 or an equivalent tool to hold the pinion companion flange. Put an appropriate tray to collect the fluid that may drip out of the rear axle before heading out to remove the pinion companion flange with the tool. Expel the seal utilising a blunt chisel and examine the pinion companion flange for nicks or damages, in which case have the former substituted. Inspect the pinion seal bore in the carrier for burr and professionally remove them. For refitting use Tool J-23911 or equivalent to refit a new seal, smear the pinion flange and sealing lip of the new seal with Special Seal Lubricant and then refit the pinion companion flange and nut and tighten the nut slightly beyond the alignment marks.

Reconnect the driveshaft, install the brake drum and wheel, and lower the vehicle.

Place the vehicle over an inspection pit or raise the rear end to provide working clearance.

To replace the old seal, follow these steps:Pry out the old seal and discard it. Lubricate the lips of a new seal with extreme pressure lithium-based grease. Tap the new seal into position.