Outer Limits 4x4 Board

ok, if you have to sets of coils (rears) both the SAME spring rate, say 300lbs. if one set has a free length of 16 inches and the other has a free length of 17.5, will they feel the same when road driving, ie will the longer ones feel softer????

does any one have a lb/in rate/value for an inflated polyair
ie would it make a 220lb spring a 250lb spring when inflated

cheers, serg

They will feel the same. The spring rate measurement is independant of the free length. The longer spring though of course will sit a bit higher.

You won't notice a difference. AFAIK this is the method usually used to get vehicles with uneven weight distributions to sit level.