I'm going to Southern CA on Sunday to look at a 1989, 1 ton, crew cab 4x4, old body style, auto, 454. Can anyone tell me what to expect and / or look for? I'm assuming it's a D60 front, D70 HD rear, turbo 400 and 205. Does this sound right? I have an 87 1 ton, will the elctronics and engine components be any different on the 89? Anything else I should look for or check out? Thanks, Eric M.