belt for supercharger too long are there different sizes?

60

Asked by Jul 22, 2015 at 03:01 PM about the 2005 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

i lost the belt for the supercharger on 2005 gtp. replaced tensioner and pulley Now the
new belt is too long.

16 Answers

27,515

oh yea....http://www.ebay.com/bhp/supercharger-belt...call gates up and tell them what you have and get a new part number...of if you know you need a inch shorter,call summit,jegs,ebay.

1 of 1 people found this helpful.
70,995

The last 4 digits of the belt's part number is the length of the belt. The higher the number the longer the belt. My guess is that the new pulleys are smaller in diameter than the original ones or the belt is misrouted. HTH. -Jim

1 of 1 people found this helpful.
27,515

come onnnnn man....did you figure it out?

1 of 1 people found this helpful.
60

The tensioner is exactly the same size. The pulley I am not sure because it was destroyed along with the belt. But there is only one size.

1 of 1 people found this helpful.
60

I am not sure what size I need. Dont know how I would measure it.

1 of 1 people found this helpful.
60

Dealer says it is correct belt. No engineering notes for model.

1 of 1 people found this helpful.
27,515

how toooo long is it???? i do this for a living... buy 3 shorter belts to get one to work,then return the others.. if its stock or not who knows do it...post some pictures if you can...belt/setup.

1 of 1 people found this helpful.
70,995

The belt for your supercharger (only) should be 67.5 inches long. The last 4 digits of the part number will be 0670 or if buying a Delco belt the part number is 6K670. Delco tensioner pulley for the supercharger (only) is 38365. Idler pulley for the supercharger (only) is 38009. These are all AC Delco part numbers that can be found at your local GM Dealer, rockauto.com, gmpartsdirect.com, or gmpartsgiant.com. HTH. -Jim

60

Yes the belt I'd 67 in long and it is about 3-4 inches too long I am guessing.

1 of 1 people found this helpful.
70,995

Sounds like it's misrouted. That belt only drives the supercharger. Nothing else. HTH. -Jim

60

38009 and 38365 is what I bought

1 of 1 people found this helpful.
60

Yes only super charger

1 of 1 people found this helpful.
70,995

Here's your belt routing diagram. One belt for the supercharger only and another for everything else. HTH. -Jim

70,995

Looks like there's 2 idlers. Could you be missing one? HTH. -Jim

There was at least one batch of belts that hit the shelves where the belt was longer than advertised: may have very well have received one of those belts. I work for an undisclosed auto parts store

I have a series 3 and it has the pulley and idler closer together belt to long

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