IHADAV8.com - Turbo Buick Tech, and Nonsense
Tech Area => General Buick Tech => Topic started by: Bob-Lob-Law on March 15 2014, 04:18:09 PM
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I'm trying to remove my rear axles in order to replace the axle seals. Problem is, the pinion gear shaft is pretty pooched and I cannot get the damn thing out. I have knocked it out about two inches but had to turn the pin around so it doesn't get stuck inside the housing. I have had no progress pulling the pin the rest of the way out. Does anyone have any advice on getting this pin out?
I appreciate all advice.
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Knock it out the back with a dead blow hammer and a brass punch. :icon_eyes:
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Is there enough room to do that? I guess I should have mentioned that I'm doing this inplace with the car's rear end on jack stands and the drive shaft and all still on.
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the pin (cross bolt) should have slid right out , it never should require a hammer
did you remove the entire cross pin retainer bolt , the 5/16 headed one??
the retainer bolt should have a thin pin end thats as long as the threaded end and the head . its common for the pin end to snap at the last thread
its not too difficult to remove but you need to be soft and spin it out with a pick .... if you tried to beat the cross pin through with the broken tip still in place ..you are in a bad place now as the cross pin is probably mushroomed on the end and stuck in the spider gear which now is preventing the rotation of the carrier and the removal of pin which is holding the axles so you cant pop the center section out
the fix from where you are requires a cutting torch to open the carrier enough to remove the spider gear with pin , then you can remove axles and get the junk diferential out , .. you will need to thouroughly wash out the axle and will need a new differential
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PacecarTA, yes, I removed the retainer bolt. The pin end didn't snap and came out rather easily. However, I can tell that this shaft is pretty old and has been through a lot. The two inches that I have gotten out shows that the pin is very rough and gouged. I'm thinking that the pin has seen a lot of races.
I'm thinking that I'm going to have to cut the two inches that I have already been able to get out, then rotate the differential so I can use a punch to bang more of the pin out, then rotate and see where I'm at.
Any thoughts???
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did you try a pry bar to get the pin back
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PacecarTA, yes, I removed the retainer bolt. The pin end didn't snap and came out rather easily. However, I can tell that this shaft is pretty old and has been through a lot. The two inches that I have gotten out shows that the pin is very rough and gouged. I'm thinking that the pin has seen a lot of races.
I'm thinking that I'm going to have to cut the two inches that I have already been able to get out, then rotate the differential so I can use a punch to bang more of the pin out, then rotate and see where I'm at.
Any thoughts???
Like I said: Knock. It. Out.
If it is as bad as you say it is, and I know I have had one just as bad (that got chewed up and stuck), you aren't going to get it out by whispering sweet-nothings in its ear.
I would recommend that you drive it out toward the pin side as it may have a slight taper to it. Plus, you can use the hole in the pin to rig up a puller against.
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Well, finally got that pin out. I had to cut it out piece by piece. It was pretty pooched too. Turned out the entire rear end is pooched; axles, bearings, seals, you name it. Full rebuild is in the works. Thanks for all the advice.