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Old 07-24-2010, 10:09 AM   #1
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How tight to do the Lug nuts?

I have a 96 Dynasty 40 ft. It has cast aluminum wheels. My manual says to trx the lugs to 500 # But if lubed, to 350 LBS. On some of the several gas rigs I had, it was 150 to 175# Allegro5
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Old 07-24-2010, 10:29 AM   #2
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Originally Posted by allegro5 View Post
I have a 96 Dynasty 40 ft. It has cast aluminum wheels. My manual says to trx the lugs to 500 # But if lubed, to 350 LBS. On some of the several gas rigs I had, it was 150 to 175# Allegro5
I would go with the manual. My gasser Workhorse W20 chassis lug nuts require 450 foot pounds. I ended up getting a 3 to 1 torque multiplier and a 250 ft pound torque wrench so I could do mine. I have yet to see a road service truck with the required equipment to accurately torque that high. I also checked a number of tire shops and RV shops and none of them had it either.
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Old 07-24-2010, 08:34 PM   #3
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Go with the manual. Older gas chassis with 16" wheels used much lower torque, but the current Class A gas chassis (Workhorse & Ford) with 19.5 or 22.5" wheels use 400+. Diesels with those big tures have always used much higher torque values.

Class C's on standard pick-up or van chassis still use a lower torque, though. Typically 150-175 lb-ft.
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Old 07-25-2010, 03:07 AM   #4
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I would go with the manual. My gasser Workhorse W20 chassis lug nuts require 450 foot pounds. I ended up getting a 3 to 1 torque multiplier and a 250 ft pound torque wrench so I could do mine. I have yet to see a road service truck with the required equipment to accurately torque that high. I also checked a number of tire shops and RV shops and none of them had it either.
my w20 with 19.5'' wheels requires 475'# torque on the lug nuts. i retorqued them when i bought the moho in 2006. they were torqued to about 300-350'#.
i carry a 600'#, 42'' long harbor freight torque wrench, a 3/4'' drive socket set including a 6 point 33mm socket for the lug nuts, and a harbor freight 625'# ''earthquake'' pneumatic wrench.
i used a jackstand or my dw to support the torque wrench when torquing the nuts.
i hope i never have to use these tools to change a tire, but could if i had too. i also carry a plug kit, air compressor, an unmounted spare tire, and tire irons.
i have aaa rv+ road service and state farm road service for such contingencies. if their commercial provider doesn't have the proper tools, they will use mine.
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Old 07-25-2010, 08:48 AM   #5
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my w20 with 19.5'' wheels requires 475'# torque on the lug nuts. SNIP i hope i never have to use these tools to change a tire, but could if i had too. SNIP if their commercial provider doesn't have the proper tools, they will use mine.
Mine are 475 also, I misspoke when I said 450. Thanks for making the correction. Like you I have a road service (Good Sam in my case) and I will ask them to use my tools if they don't have what they need and I would be willing to bet they won't have them.
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