Try a good boat shop! They make large cables frequently with the really nice "Anchor" brand tinned copper wire & tinned lugs. Add heat shrink with sealant and they will outlast the truck. Ever make it down from the hills to the sea? Swing by I'll help you make up the cables!
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2001. 5 2500 ETH/DEE 4x4,Patriot Blue over Silver,Camper pkg, Trailer pkg,Agate Leather,Stainless Smitty Bars,Tow hooks... . Except snowplow!