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Old 06-16-2019, 08:45 PM   #1
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Join Date: Apr 2019
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Jacking the back of a P30 safely

Ok, so I am now getting to the rear end repairs on my 1988 32 foot sportsman cross country. Did all the work on the front no problem. The back end, no good place to lift. I had it roll on me the other day on first attempt. So here are the questions. Will front and rear wheel chocks on the front tires prevent it from rolling? What are the best kind? I can Jack with my 20 ton bottle Jack under the axle, but then getting a place to put my 12 ton stands is another issue. They are so large. I have to do an entire rear brake job which is going to mean removing the axles, so it has to hold steady. Advise please.

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Old 06-16-2019, 10:03 PM   #2
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Location: Cannon Falls, Minnesota
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I will be following your thread.

Recently worked on AutoPark on my 93' I used two 2? ton rolling floor jacks on a level concrete floor, with remaining 3 wheels chocked. Positioned one under the iron which the airbag was mounted to and the other under the axle. Only lifted it up enough to clear the ground. That was a lotta weight judging by how the jacks behaved. Did not use stands but never had to remove the wheel. Thinking about a 4 ton jack from Harbor Freight instead of relying solely on the bottle jack. All that weight on more or less a bottle cap with the reg. bottle jack. Makes me nervous.

You have to remove the axle to work on the rear brakes? I would think you couldn't chock or jackstand enough. Maybe multiple points along the frame rail and the bumper hitch if you have one.

Are you just doing a pad/shoe slap, caliper/piston change, line swap or all of the above?

Reading your previous threads, you have a Sportcoach with disc all the way around and only 5 lug rims? I have about a dozen lug rims and drum rears on mine. You should have an absolutely level/hard surface to start with.

Do you have access to a shop manual? From what I read online, some are advising against jacking up under the axle alone. Too much weight for the axle alone.

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Old 06-16-2019, 10:28 PM   #3
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Okay. Checked out video on YouTube. Channel is "Class A Living". Video shows a gas tank removal/repair with rear wheels off and 2 stands positioned on the frame rails ahead of the rear axle and 2 stands, one each under each side of the rear axle itself. No help for jacking points though.

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Old 06-16-2019, 10:44 PM   #4
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Definitely use some type of wheel chocks at the front tires even if it’s only blocks of wood.m
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