Suspension add on's
Question for the engineer types. If. The rear bumper lowers 2 inches or so when the fifth wheel landing gears are retracted, then air bags are installed and inflated sufficient to raise the rear bum...
Forum Discussion
Old-Biscuit wrote:msjdbman wrote:
If we are talking 5th wheels...the hitch pin should be at least centered over the rear axle if not an inch or more ahead of the axle. So loading should add weight ( even if minimally) to the front axle as well as the rear regardless of front vs rear appearance.
Exactly.......
Rear axle/suspension 'carries' the pin weight of 5rv.
Rear squat is due to weight being applied to rear axle/suspension.
And even though rear may squat (normal/acceptable....not OVERLOADING) the front axle will have some weight added (minor).
My 5vr pin weight is almost 3000#. Rear squat is over 2"-----overload springs are in play and front axle weight increases by 150#
That rear squat is basically just the rear suspension being loaded.
X2
It is the same as a TT loading at the area of the bumper. In the case of the TT the rear axle acts as a pivot point so you do remove weight from the front axle. With a 5er the weight is being applied directly over the rear axle, so the back goes down but the front doesn't come up.
