Replacement Rear Stabilizer Jack Motor for 2008 Keystone Montana 340RL Big Sky 5th Wheel

Question

Question:

Im looking for a replacement rear landing gear motor, I dont have a model number so the only help I can give you is the VIN off the camper.

asked by: Bruce K

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Expert Reply:

It sounds like your 2008 Keystone Montana 340RL Big Sky 5th wheel has a Lippert Ground Control auto-leveling system installed, such as the 4-point setup # LC358590 or the 6-point # LC675817. If so the replacement rear leg assemblies are part # LC344792 (right rear) and # LC342610 (left rear). Motors only are not offered by Lippert.

If instead you have a Lippert rear stabilizer jack like # LC298707 there is a replacement motor unit available, part # LC138445.

expert reply by: Adam R

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Answer 1

The replacement motor for your landing gear is #LG-142178 This will work well for you.

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Answer 2

You'll want to confirm the distance between the weld stops where your current landing gear are installed to determine which landing gear set can be used as a replacement. The #RVLG-8000 has 15-1/2" measured from the inside of the weld stop…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 5

We do carry the 33" Ark Stabilizer Jack that you are looking for with part #ARK77FR. I was able to track down a few drawings that you should find helpful. These are for the 30" #ARK94FR and the 24" #ARK34FR Stabilizer jacks. I'm…

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Answer 6

I contacted the manufacturer about the lengths for these stabilizer jacks and have included the information they were able to provide me. The Ark Drop Down Corner RV Stabilizer Jacks #ARK34FR are 422 mm (16.6") collapsed and 600mm (23.6")…

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Answer 7

Good news! I was able to go out to the warehouse and measure the etrailer landing gear #RVLG-8HDL for you. I found that the distance between the weld stops from the outside to outside is 17-1/2 inches and from the inside to the inside of the weld…

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Answer 8

The Ark stabilizers won't affect your ground clearance, but to determine the right ones that really depends on how high up your frame is off the ground. Overall, the Ark RV Stabilizer Jacks #ARK34FR are 16.6" collapsed and 23.6"…

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Answer 9

The Ark Drop Down Corner RV Stabilizer Jacks #ARK94FR are able to lock into place at 30 and 60 degrees as stabilizers. They also have the 90 degree position where it is rated for 1,929 lbs and then the stored position.

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Answer 10

It could be the motor but it could also be the screw/nut inside the jack leg that is causing the problem. Since you mentioned that it is hard to crank it manually I suspect that it is likely the screw and/or nut. On jacks that have an ACME screw the…

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