take it in sections that what i did i stated with all fpur wheel wells and moved to the gas tank all the way to the tail gate trust me the job blows but heres what i did. the day b4 i was going to paint i loaded up some supplys. got some clr,rim cleaner and degreeser i sparyed the hose after each one i started with rim,degreeser,clr worked great then i got some can from kragens of the sound reduction rubberized undercoating spray. worked great now i got from back seat to the engine compartment. hope this helps.