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View Full Version : I need a gator belt for my 4# crank!



0'Lightning
05-04-2009, 03:31 PM
My boost is bouncing all over the place. I raced a modded 95 vette last night in frisco and beat him the first 2 runs off the tollway exit. Then the 3rd run he beat me cause my belt was slipping nasty in 1st gear. Last I checked terry had one but he's a pretty busy cat. Where can I buy one if none of yall have a spare?

ZeusSVT
05-04-2009, 03:43 PM
My boost is bouncing all over the place. I raced a modded 95 vette last night in frisco and beat him the first 2 runs off the tollway exit. Then the 3rd run he beat me cause my belt was slipping nasty in 1st gear. Last I checked terry had one but he's a pretty busy cat. Where can I buy one if none of yall have a spare?


Oreilly's should have one, if not they can have it at the store by tomorrow. Give Terry a call though. He might can hook you up if he has one available. Are you coming to the meet on Thursday?? I will see Terry before then most likely, whether he makes it to the meet or not.

0'Lightning
05-04-2009, 03:53 PM
I went to O'ryllies in little elm and he said they didnt carry them. I guess I'll give Terry a call. will you PM me his number.. i think he changed it didnt he?

PUMP
05-04-2009, 04:03 PM
What size belt do you have on there now?
I have a stock Belt, a 69-inch and a 71-inch. For a 4# lower (7.5" diameter) and a stock Eaton upper a 67.5-inch is probably the smallest you can use. I used a 68-inch with that combo without any problems before I switched to a KB blower. Do you have oversized idlers (100-mm)?

PUMP
05-04-2009, 04:06 PM
Terry's # is 214-923-0045

0'Lightning
05-04-2009, 04:09 PM
stock idlers, stock sc pully, 4#crank. pretty sure its the stock belt

ZeusSVT
05-04-2009, 04:26 PM
Stock belt is 66". If you are running 4lb lower, Pump is correct, you need a 67.5" belt with stock upper and stock idlers. It will be pretty tight. You can do a 68" with no issues as well.

PUMP
05-04-2009, 04:41 PM
If your running a stock (66") belt and still slipping, you need to check the install. A larger belt will only slip more. A 66" belt is a really tight fit with a 4# lower. In fact the only way to get it on is to cut (or nock off) the adjust idler stop (Which Terry usually does). Check the spring in the adjust idler, it may not be putting enough tension on the belt.

0'Lightning
05-04-2009, 04:44 PM
I had 4 different belts when the crank was intalled, most of which ended up being no good. I cant remeber which one we finally put on there. The numbers worn off the belt on my truck so I dont know.

PUMP
05-04-2009, 05:00 PM
Check the tensioner (I called it the adjust idler earlier). If its rotated all the way or almost all the way to the no belt position (counter clockwise when you're facing the engine, then your belt is too big. As I posted earlier you need a 68" or 67.5" belt. Like I said, I have a stock belt that you can have, but it is nearly impossible to put it on with a 4# lower. I'll check the size on it and get back to you.

PUMP
05-04-2009, 05:32 PM
Stock is 66", and is a really tight fit (if at all). If the current one is slipping (and the tensioner is OK) it is probably a 68.5" or 69". A 68" will usually work, but I have heard/read reports that others have experienced slippage with a 68", in which case you should go with a 67.5" NAPA order one for you. Make sure it is an 8 ribbed belt - part number beginning 080.
a 67.5" belt would be 080675 (NAPA number 25-080675) Good luck.

0'Lightning
05-04-2009, 05:42 PM
4000rpms and up, in 3rd gear my boost jumps from 10#'s to 7#'s back and forth never fully reaching 13#'s before it shifts. Last night was the first time I had really experience slippage in first gear.
P'ed me off cause he thought he finally beat me. He did say he was surprised I out ran him the first two runs.

99WhiteBeast
05-04-2009, 09:08 PM
I've bought most of mine from Napa over the years

You could use a 67.5 or 68 belt

L8 APEX
05-04-2009, 10:29 PM
I have several 675 Gatorbacks #20 bucks. I am in Lewisville or $10 bucks paypal and mail. Nobody will have a Gatorback local for under 40 bucks.

ZeusSVT
05-04-2009, 10:34 PM
I have several 675 Gatorbacks #20 bucks. I am in Lewisville or $10 bucks paypal and mail. Nobody will have a Gatorback local for under 40 bucks.


If he can't come and get it, I can get it from you thursday when I am over there, and give it to him since he lives up this way by me. :icon_mrgreen:

0'Lightning
05-05-2009, 01:33 AM
If he can't come and get it, I can get it from you thursday when I am over there, and give it to him since he lives up this way by me. :icon_mrgreen:


That would work out great, let me know.:tu:

ZeusSVT
05-07-2009, 11:40 PM
That would work out great, let me know.:tu:

I have your belt from Terry. Bring me $20 and come and get it. Give me a call first and make sure I am home. I have to work some this weekend so will be in and out of the house, but I'm only right up the road at work. :tu:

L8 APEX
05-08-2009, 08:19 AM
I am sure you will need to adjust the tensioner if it hasn't already been done.

0'Lightning
05-08-2009, 01:00 PM
I have your belt from Terry. Bring me $20 and come and get it. Give me a call first and make sure I am home. I have to work some this weekend so will be in and out of the house, but I'm only right up the road at work. :tu:

Awesome, thanks a lot! I'll come to Frisco tomorrow and hang out at my friends shop till you have some time for me to swing by. I'll text you when im around.


I am sure you will need to adjust the tensioner if it hasn't already been done.

How do i go about doing that?
I have heard something about breaking a tab as well??
Thanks Terry!

PUMP
05-08-2009, 10:07 PM
Stock belt tensioner has a metal tab on the hub that limits the clockwise rotation. In order to allow a smaller belt to be installed (smaller belt equals less slip) the limit tab is broken off to permitt more clockwise rotation (more rotation equals more slack in the belt) so the belt will slip over the upper pulley. If your truck has the stock tensioner you will not be able to install a 67.5" belt. A 68" will barley go on with the stock tensioner (this applies to a 4# lower and a stock upper).
To locate the tab, rotate the tensioner clockwise as far as it will go. You will feel a hard solid stop. Inspect the hub of the tensioner and you will be able to see the tab that is hitting the stop.
Note: The intercooler resevoir has to be shifted so that you can get to the tensioner for this operation.
If you want to grind off the tab, you will have to remove the belt tensioner assembly. You can break off the tab by holding a chisel (a screwdiver with a good solid handle will work) against the tab and stricking the free end of the chisel with a hammer. The break is not as smooth as grinding but you can not see it when the tensioner is installed.

0'Lightning
05-09-2009, 01:26 PM
hmm, so will I have to buy a aftermarket tensioner, or will breaking the tab do the trick?
Great info, thanks for the help PUMP!

PUMP
05-09-2009, 03:06 PM
Breaking the tab will do thee trick.

0'Lightning
05-10-2009, 03:08 AM
Thanks for gettting me the belt from Terry, Michael. Hopefully I'll have it on by mondau.

ZeusSVT
05-10-2009, 04:01 AM
Thanks for gettting me the belt from Terry, Michael. Hopefully I'll have it on by mondau.

No problem. Good seein ya yesterday. Where was the L? Was that the hooters girls car you were driving?? :evil

0'Lightning
05-10-2009, 10:06 PM
No problem. Good seein ya yesterday. Where was the L? Was that the hooters girls car you were driving?? :evil

No, that was my girlfriend and her car LOL!! My L was at her moms in frisco. I didnt want to drive the L, fearing that the hooters girl might see me with her... Im about to call it quits with the hooters chick, but i need to fly under radar when im with my gf in frisco.:throw:

ZeusSVT
05-10-2009, 10:28 PM
No, that was my girlfriend and her car LOL!! My L was at her moms in frisco. I didnt want to drive the L, fearing that the hooters girl might see me with her... Im about to call it quits with the hooters chick, but i need to fly under radar when im with my gf in frisco.:throw:

Sneaky sneaky....knana