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Re: Re: Re: Re: Trailers
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Posted by T_Bone on June 03, 2004 at 04:06:46 from (4.240.42.100):
In Reply to: Re: Re: Re: Trailers posted by paul on June 02, 2004 at 23:31:20:
Hi Paul, DRW= dual rear wheels From memory as I can't find my book; Safety chains, 2 required Class I = upto 3000lbs and requires 1/4" chain Class II= 5000lbs, 5/16" Class III= 10000lbs, 3/8" Class IV= 14000lbs, 7/16" Safety chains can NOT be heat cut or be attached by welding. I think it was grade 30 chain minimum. Luna eye mounting plates and pintle hitchs are stamped with there GVWR. Most pintle surge brake couplers have a vertical load rating of 2000lbs. I have ran into one 3000lb vertical rating but don't remember the brand name. You would need to do a search as theres different luna eye diameters (non-surge brake) for a given rating, 20000lb and 40000lbs (1-1/8" ring dia.) being common. I got my pintle hitch off of a semi double set-up that was rated for 40000lbs. I doubt if you will find a axle tag being that old. Some were stamped with there weight rating but good luck finding it. A 4" sch:40 round axle is rated for 10000lbs. There's also sch:80 4" I think that are rated 12000lbs. You can also estimate GAWR by the brake size. 3-1/4" x 12" is good for 10000lbs/pr ??? Most Dana 60 axles used on 4wd pick-ups are 20000lb alxes depending on how there componets are configured. Axle tubes are all the same. Different ratings come from the brakes and bearings. That one shocked me when I read that on the Dana website as a F350 DRW 4wd, uses a Dana60 front axle and a Dana80 rear axle with the Dana 80 axle having consideable more beef than a Dana 60. I couldn't find the Dana 80 rating. No springs on a OTR trailer??? That should beat the he11 out of things. I would bet the frame wouldn't last long and will crack welds/material in several places with-in a short time. You can buy new 7000lb electric brake axle for about $250, complete, no tires or wheels. I don't know how the commerical guys keep up with all the DOT laws. I still have not put turn signals on my tractor tho :) Ok while I got your attention, I have a local farmer that sells 1/2 beef for $1.49/lb cut and wraped. Sounds too cheap? Why? T_Bone
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