yeah i must say i was a little intimadated when i opend the painless box and saw all of the wires and connectors..and thougth to myself "all of this is in my truck and needs to be replaced?, its gonna take me for ever"..but i just layed everything out on the floor and was amazed at how easy it was to do..my friends saw all the wires on ther floor and said i was crazy to even try and do it. but when i was done, they were amazed that i did it as fast as i did..i would say the hardest part for me, was running the light wires to the rear or the truck, not that it was hard..but i highly reccomed going to the carwash and pressure washing all the mud, dirt, and grease off from under the truck first..its a great kit, a little more pricey than others that i have seen but in my opinion well worth it. they have great customer support too, i called a couple times to ask a question about what i was doing and they stayed online a walked me through everything, they even hunted down a compleate 1982 k-5 factory wire diagram and faxed it to me..i would highly reccomed them and their product, and i will use them again..i also bought the waterproof dual battery kit, and high output alt kit from them, and installed those at thesame time.