Pinion flange installation tool - Team Camaro Tech
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post #1 of 5 (permalink) Old Jul 28th, 01, 04:03 PM Thread Starter
Join Date: Sep 2000
Posts: 9


I'm replacing the pinion seal on the 8.5 inch 10-bolt in my '69. I was wondering what tool people here have used to pull the flange back onto the pinion splines. The '69 chassis manual I have calls out a special tool, but I think this would be for the 8.2 inch rear axle. Anyone know if this tool also works for the 8.5 inch, or do I need a different tool?

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post #2 of 5 (permalink) Old Jul 28th, 01, 05:16 PM
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Location: Concord Cal. USA
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Do you mean to hold it while you tighten the nut? I made one out of a piece of angle iron. If you want to push on the flange just use a rubber hammer.

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post #3 of 5 (permalink) Old Jul 29th, 01, 07:39 AM
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Location: Central City, Ky.
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Most of the time when changing a pinion seal a impact wrench is good enough for tightening the pinion nut. Most 1/2 inch drive impact wrenches are strong enough to get the nut tight without colapsing the spacer any more. The tool for holding the pinion yoke is used when you have the differential out of the rear end. The ring gear should hold your pinion still while you tighten the nut if you set the parking brake. Use a new pinion nut and put a few drops of red Lock Tight on the threads when you put it back on. Put some RTV sealant on the splines in the yoke before you put it on so oil doesn't seap out around them. Also put some RTV around the seal before you drive it in and put some grease on the seal to lube it.

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post #4 of 5 (permalink) Old Jul 30th, 01, 03:28 AM
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What pressure would be best to run on the impact gun to avoid further crushing the sleeve? Can you mark the threaded shaft so you don't go past that point or am I getting too crazy?

Rick Dorion
69 RS Conv,355,M20,4.10's
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post #5 of 5 (permalink) Old Jul 30th, 01, 02:30 PM
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Marking the nut is a good way to do it.
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