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Old 02-19-2019, 08:47 AM   #1
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Torque wheels on 3720 RL

I am trying to learn about torquing my wheels . The manual does not tell me the stud size ,but the size of the stub determines the FT Lbs you apply.I know this is simple for a lot of campers but not for me. Thanks for any help.Jerome and Judy.
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Old 02-19-2019, 08:52 AM   #2
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I've always torqued mine to 120# but I have IS and I believe larger studs. I also used 120# on the new rig, however, before IS was installed.
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, MorRyde pin box
2017 3500 Dodge Maxi DRW 4X4, Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, etc.
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Old 02-19-2019, 09:50 AM   #3
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Here's a chart from Etrailer:

'05 F250 6.0 Bullet Proofed
'02 Montana 3280RL Upgraded a bunch.
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Old 02-19-2019, 03:40 PM   #4
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If your rig is stock, it came with 7,000 lb Dexter axles and the studs are 1/2" which require 120 ft lbs of torque on the lug nuts.
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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Old 02-19-2019, 04:51 PM   #5
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The reference below is the 2019 generic Keystone owner's manual. Some wheel torque info is on pager 24 & 25.

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Old 02-24-2019, 07:30 PM   #6
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Thank you !
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Old 08-25-2019, 10:51 PM   #7
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I could not find anything that spelled out which studs my new Montana High Country had--16" wheels, aluminum, but 1/2" or 9/16" studs? The difference is 120 ft-lbs or 160 ft-lbs, with damage if too much is used, and the wheel can fall off if too little. So, I used my torque wrench to pull off a lug nut, and guess what? It had "1/2" engraved on the side! Question answered...1/2" = 120 ft-lbs.
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