i am sure that this has been asked time and time again, but does anyone think that i will need a longer drive shaft with a 4 inch ccot lift kit? is there anything else that i will need to pay attention to?
of course all cruisers are different but you shouldn't need new d-shafts for a 4" lift. My TPI lift came with 6 degree shims for the front (fat end forward!). I went ahead and replaced all the u-joints while I was at it but most don't need that either.
longer brake lines or relocated hangers are needed and make sure you mark the driveshafts if your going to separate them, they get pretty rough if they are put together out of phase :
My understanding of the TPI springs, Jim is that they are not built to include correct caster, and the 6 degree shims must be installed in order to attain correct caster. OME springs, for instance, are built to include correct caster, as are Skyjackers. However, most people find that while normal driving is fine with the Skyjackers, flat towing is greatly benefited by installing small (2 degree) caster shims with the lift.