Wondering if truck conversions ever have a tag axle either in front of or behind the main drive axle like the tag axle on MCI busses?
Why does a tag axle on an MCI bus only have two tires total while a dual rear axle conversion has 4 tires per axle...? Comments? Thanks. |
I am considering a single wheel air tag on my next conversion
they ride much more quiet then tandem drivers but still give many of the same benefits without the danger in slippery conditions ! |
I have thought about it, and will have serious discussions with the dealer and manufacturer when it comes time; a tag out back helps with weight capacity (a single RA is likely to be too light in capacity), but can be lifted for tight spots and to put more weight on the drive axle when in the slop.
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Does this help clarify things a little? |
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Does this help clarify things a little? </div></BLOCKQUOTE>Note that on a tandem only one axle is being powered under normal conditions. The other axle just free wheels along saving fuel unless switched "on". Some dual drive axles are set up so you can throw the "power divider" while in motion while others must be at a stop. The reason for a "tag axle" is to save money and/or weight. If I was in the market for a tandem axle motorhome, I would want both axles to be driven rather than just one. My feeling is the added traction in a bind is worth the slight savings in fuel mileage. |
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Check an exploded drawing of a splitter axle or check out an actual axle and you will see that this is true. |
A single axel air tag can be rated as high as half a tandem dual set up ( when using super singles )
they are very good for high cg applications and in a coach the lack of all that gear noise and vibration is a nice plus ! as far as having extra traction with tandem drivers??? maybe, but probably not in most real world situations ! most of the time single axels have more traction while opperating with realitively light loads !(especially if you have a air diff lock s/a ) an air tag can increase available traction (drive ) if lifted I am probably going this way cause sometimes we dont pull our race trailer, we just use the coach as a camper alone ! |
Very true, Fastlap! You hit it on the head with the capacity issue when you mentioned the "super-single". With regular single tires, the tag axle capacity is far less than with "super singles". All of this is a non-issue with me as the rig I plan to use will be short and light enough to warrant a single axle; tandems would be a total waste of weight and space, and just make things too complicated in general. I'm a firm believer in the KISS principle; Keep It Simple Stupid (referring to me, of course!). Have a terrific Christmas and New Year!
Gary |
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