spydog

hi guys i am looking at buying a GMC K3500 1 ton dully crew cab 454 gas. whar are some things i should look for it has 81,000K miles on it. what shoult i look for anny known issues?

Neil 6.0

year?
auto?

spydog

o my bad the truck is a 1998 GMC K3500 4X4 crew cab long box dully with and 4l80E tranny and a 454 7.4 L engine

Neil 6.0

Should be a pretty good truck. It might burn a little oil between changes, but that's to be expected with a big block. I've heard that some of those Vortec big blocks have the same leaky intake manifold gasket problems that the small blocks have. There are better gaskets now that prevent this. Check the oil & coolant to see if they might be mixing together. Look for leaks around the transfer case and front axle outputs and give the 4x4 system a good workout to see if anything sounds/feels funny. Trans should be fine unless it has done heavy towing 24/7. Other than that, I'd just flush all the fluids & filters and drive the crap out of it.

spydog

the coolant over flow tank was empty and there was no coolent in the oil it to mee looks like the intake is leeking just like my vortech 350 did how big of a job is intake gaskets on a 454 i did the gaskets on my 350 axle seals are dry to there is nothing leeking except the intake he is asking $8400 blue book is $10000 i was thinking about offering him $8 what do you guys think and is there annything els i should look for other than intake gaskets? Thanks

00ChevyScott

iTrader: (10)

The price seems pretty reasonable for such a big truck with that low of miles. $7-8k would be a good start IMO.

1Bear

iTrader: (1)

Changing the intake manifold gaskets is not that bad, just a little time consuming beings that you need to remove the upper portion before you can pull the lower. Just be a little careful with the EGR pipe where it attaches to the intake (it's been there a lot of years). Just use silicone on the end rails of the block under the intake like you would on a small-block (we don't need no stinkin gaskets). You need to mark the distributor before you pull it. Most definitely while you have the upper intake off, change the cap and rotor as it is way easier to access with nothing in the way and you would have to do it by feel if you decided to wait and do it later. It also isn't a bad time to change the fuel pressure regulator as it's under the upper manifold, but beings that pulling the upper is so easy I would probably wait until it needed it. They are really pretty reliable old beasts and I would probably start with a little lower offer. We sold my wife’s '98 crew-cab dually just this last year for $6500 and it was a pretty nice truck, while we didn't have a hard time selling it, there just isn't an over-abundance of folks looking for gas drinking dinosaur.

spydog

ok i am know a proud owner of a 1998 GMC K3500 crew cab duall full power everything and leather it has the waldoch conversion package to i love it it is way bigger than my 1997 K1500 ext cab short box

budhayes3

iTrader: (19)

Congrats man, good luck with it! Now let's see some pics!