hi kajtek1 and others...
the problems with this 3 inch rule are many...
first the o.p. has airbags on the truck which will mask the drop...
next this guideline makes no mention of the front end which is really WHY we need w/d...
to reload the front axle.
also the rule doesn't suggest if the drop from other payload is part of this...
and so on.
4 me it is all about measuring axle loads and the tongue weight.
next biggie, is the issue of
'is it ok to use w/d with airbags' ?
many will say NO that's not good, while others do it and are happy.
the point is the o.p. needs to know how much the tongue weighs..
and how much the ft/rr truck axles weigh, before and after hitching up...
sure most of us would want sway control as well, but w/d and sway control are not combined on all hitches...
yes, more details are needed.
here's a thread that
might help the o.p. understand the need to get measurements...
and if not, at least some of the posts are funny...
http://www.airforums.com/forums/f238...-ii-21000.html
and the first part of toasty's story...
http://www.airforums.com/forums/f464...-do-21015.html
cheers
2air'