Removing diff pumpkin
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Removing diff pumpkin
Hey guys,
Anyone out there remove their own diff pumpkins? I'm thinking about taking mine off myself and then bringing it to a shop to install a LSD instead of leaving my car there (much more convenient for me). If so, is there anything to watch for? I looked in the service manual, but it doesn't have the exact sizes of the bolts. How's the clearance on the axle bolts? Is there a way to rotate it to get more clearance? Also, the service manual says to replace all the bolts on the axles after removal. Is this necessary? Thanks
Anyone out there remove their own diff pumpkins? I'm thinking about taking mine off myself and then bringing it to a shop to install a LSD instead of leaving my car there (much more convenient for me). If so, is there anything to watch for? I looked in the service manual, but it doesn't have the exact sizes of the bolts. How's the clearance on the axle bolts? Is there a way to rotate it to get more clearance? Also, the service manual says to replace all the bolts on the axles after removal. Is this necessary? Thanks
Last edited by zeer0; 09-11-2006 at 02:28 PM.
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Originally Posted by zeer0
Hey guys,
Anyone out there remove their own diff pumpkins? I'm thinking about taking mine off myself and then bringing it to a shop to install a LSD instead of leaving my car there (much more convenient for me). If so, is there anything to watch for? I looked in the service manual, but it doesn't have the exact sizes of the bolts. How's the clearance on the axle bolts? Is there a way to rotate it to get more clearance? Also, the service manual says to replace all the bolts on the axles after removal. Is this necessary? Thanks
Anyone out there remove their own diff pumpkins? I'm thinking about taking mine off myself and then bringing it to a shop to install a LSD instead of leaving my car there (much more convenient for me). If so, is there anything to watch for? I looked in the service manual, but it doesn't have the exact sizes of the bolts. How's the clearance on the axle bolts? Is there a way to rotate it to get more clearance? Also, the service manual says to replace all the bolts on the axles after removal. Is this necessary? Thanks
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Originally Posted by zeer0
The two speed sensors are held in by the bolts that are next to them? Just want to make sure before I start attempting to take this thing off.
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Originally Posted by zeer0
Planning to lower it down on a jack. The main drive shaft doesn't need to be suspended like the rear axles? The service manual doesn't say anything abou it.
Just thinking out loud here, but if the car is on jackstands, I don't see why you couldn't just ease it down and rest it on the ground. If it's on a lift, then I'd say you should suspend it so you don't stress the tranny or U-joints.
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Ok, I'm kinda stuck midway through the uninstall. I've removed the diff from the rear axles and front and the bolts are off. Only problems I'm having now are that bolt in the back thats attached to the aluminum diff cover. I don't have the deep socket for it. Anyone know what size it is? Also for the life of me I cant get the breather hose off. Should I remove that with the pumpkin completely unattatched sitting mid air on a jack?
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Originally Posted by zeer0
Ok, I'm kinda stuck midway through the uninstall. I've removed the diff from the rear axles and front and the bolts are off. Only problems I'm having now are that bolt in the back thats attached to the aluminum diff cover. I don't have the deep socket for it. Anyone know what size it is? Also for the life of me I cant get the breather hose off. Should I remove that with the pumpkin completely unattatched sitting mid air on a jack?
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Originally Posted by zeer0
Planning to lower it down on a jack. The main drive shaft doesn't need to be suspended like the rear axles? The service manual doesn't say anything abou it.
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#14
Is it a risk? FOR SURE. I haven't done this job, so I don't know how many bolts we're talking about and what would be destroyed or damaged if it went to $hit, but I think that it might be a reasonable risk, considering the cost of new bolts.
Back when I did it, each bolt was $5 and I was putting a non-perfectly fitting 1.6L head onto what might have been a shot block, so it wasn't a big deal. I didn't want to spend the extra $60 on my experiment and a whole new engine would only have been ~$1200. I would NOT have done it if I was playing with a new Cummins, but I took the chance and those things held forever after. If there are multiple bolts holding things together there, your risk is lower, because more than one would have to shear to really start damaging things.
It's a long way from ideal, but evaluate the risk/reward and see what you think.
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