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The Terminator
Driveline
Rear End Leaking - Pinion Seal?? (Pictures Inside)
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<blockquote data-quote="big dad" data-source="post: 14832573" data-attributes="member: 100697"><p>Mark the location of the driveshaft yoke and pinion flange with a crayon or bright Magic Marker so you put it back together in the proper index.</p><p>Next remove the driveshaft and take a chisel and hammer and put a mark on the pinion nut and end of the pinion so the marks line up. Also mark the pinion flange to line up with the other marks before removing anything.</p><p>Remove the old seal. Put a pan underneath to catch the diff fluid when you remove the old seal.</p><p>Pack the new seal on the backside with grease or vaseline. This is done to prevent the spring on the backside from popping out when you hammer the new seal in.</p><p>Use a Scotchbrite pad to polish the companion flange surface that the seal will be riding on, just get it cleaned up and shiny. Put a little grease on that area also. Then pound in the seal till it stops.</p><p>When those marks are all lined up reinstall the pinion nut (with a silicone bead on the backside), and tighten down the nut utill the marks line up.</p><p>Refill the diff with fluid and friction modifier until it comes out the fill hole, reinstall the driveshaft, clean off the diff from the old seal leak. Road test and recheck for leaks.</p><p>Based on info you may have a bearing(s) problem if the noise does not go away. Good luck.</p></blockquote><p></p>
[QUOTE="big dad, post: 14832573, member: 100697"] Mark the location of the driveshaft yoke and pinion flange with a crayon or bright Magic Marker so you put it back together in the proper index. Next remove the driveshaft and take a chisel and hammer and put a mark on the pinion nut and end of the pinion so the marks line up. Also mark the pinion flange to line up with the other marks before removing anything. Remove the old seal. Put a pan underneath to catch the diff fluid when you remove the old seal. Pack the new seal on the backside with grease or vaseline. This is done to prevent the spring on the backside from popping out when you hammer the new seal in. Use a Scotchbrite pad to polish the companion flange surface that the seal will be riding on, just get it cleaned up and shiny. Put a little grease on that area also. Then pound in the seal till it stops. When those marks are all lined up reinstall the pinion nut (with a silicone bead on the backside), and tighten down the nut utill the marks line up. Refill the diff with fluid and friction modifier until it comes out the fill hole, reinstall the driveshaft, clean off the diff from the old seal leak. Road test and recheck for leaks. Based on info you may have a bearing(s) problem if the noise does not go away. Good luck. [/QUOTE]
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Rear End Leaking - Pinion Seal?? (Pictures Inside)
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