What is the difference of a front or rear spring? Are they interchangable? I have a hard top and tire carrier, so figured heavy duty might be better in the back.
no difference, I have a spare set of 14 out back of my house, I am now SOA and the 14 wont hold that, I changed for the 36R, 5 pack and run those front and rears and wuold recommend to ANYONE do the same, I ran 14 on the front for years and the flex was MAD, I never nor do I now have a winch, but soon as I wnet SOA the 14 started to sag... so I ordered 2 new 36R for the front and problem solved....
just get the 36 and be done, the ride is STILL uber nice