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View Full Version : what size belt for UD pulley



J-rod
02-19-2007, 12:54 PM
what size belt do i need for a UD crank pulley. i want to get one and install it. not selling anymore...no need too...so i want to install it...it will go good with my other spring parts.

:pepper:


pulley in question:
http://i29.photobucket.com/albums/c267/jcvince17/FORSALE.jpg

04yellowcobra
02-19-2007, 01:46 PM
Best bet is to just install everything and just measure your belt routing with a string or piece of wire. Then just take the old belt to the part store and tell them you want one the same just shorter.

wick
02-19-2007, 05:53 PM
You might not need to change the belt. The lower pully is smaller but the other ones are bigger. It kinda balances out.

INSANELY CRAZY
02-19-2007, 05:55 PM
take an old belt cut it to length then take to part store to match up to good belt...

fast4ord
02-19-2007, 06:32 PM
An actual tape measure works too.

fast4ord
02-19-2007, 07:06 PM
wrap the tape measure around the pulleys as you would a belt. and it will give you length in inches.

lib88stang
02-19-2007, 08:14 PM
wrap the tape measure around the pulleys as you would a belt. and it will give you length in inches.

I agree with Don, very easy:thmbsup:

J-rod
02-19-2007, 08:20 PM
i know how 2 do it...just thought someone knew what size. like i have a list of sizes for 3.8 and 4.6 motor UD belt sizes.

Viper_ed
02-19-2007, 08:29 PM
Well, without knowing the dia. of the pulley, it might be easier picking this weeks winning Powerball Numbers. :dunno:

Troll
02-19-2007, 08:31 PM
Well, without knowing the dia. of the pulley, it might be easier picking this weeks winning Powerball Numbers. :dunno:

...and yet his sig says :flip: troll and not :flip: ed. :balls1: :balls1: :balls1:

lib88stang
02-19-2007, 09:06 PM
...and yet his sig says :flip: troll and not :flip: ed. :balls1: :balls1: :balls1:

:rotflol: :rotflol:

J-rod
02-19-2007, 09:32 PM
suddenly i remember why i like SCS

:rolleyes:

J-rod
02-19-2007, 09:36 PM
pulley is 4.5" O.D.

wick
02-19-2007, 09:38 PM
Well, without knowing the dia. of the pulley, it might be easier picking this weeks winning Powerball Numbers. :dunno:


HAHAHAHAHAHAHAHAHA:biglaugh: :laughing1: :biglaugh: :rofl: HAHAHAHAHAHA

Viper_ed
02-19-2007, 10:42 PM
pulley is 4.5" O.D.

Well, that's VERY close to a 93 Cobra Crank pulley. If you can find a belt listing for the 93 Cobra, that may work. Keep in mind if the smog pump has been removed, it will be a total guessing game.


$hit, I wasn't supposed to help! :upyours:

Balaska347
02-20-2007, 12:42 AM
If all you are doing is add under drives you should be able to use the same belt. The tensioner should take the slack out. There isn't that big of a difference in the pulley size.

Troll
02-20-2007, 12:45 AM
If all you are doing is add under drives you should be able to use the same belt. The tensioner should take the slack out. There isn't that big of a difference in the pulley size.

i think he's just replacing the crank pulley. never can tell which personality is talking in sentence fragments.

also, if you can't fix that dipstick, you sure as hell ain't gonna get that crank pulley off there. :laughing:

Viper_ed
02-20-2007, 12:48 AM
also, if you can't fix that dipstick, you sure as hell ain't gonna get that crank pulley off there. :laughing:

:rollingfloorrlol: Guess the fact that a wrench is NOT involved when it comes to the dip stick must be confusing. :balls1:

Balaska347
02-20-2007, 12:58 AM
You guys crack me up. SCS has some of the best entertainment.:rollingfloorrlol:

Jared, I'm sure your a good guy, but sometimes I think you should drive a ricer with a coffee can and a dragster wing on the back.

J-rod
02-20-2007, 07:25 AM
:rolleyes:

fvck you all

J-rod
02-20-2007, 07:28 AM
not everyone is blessed with a nice garage and any tools needed....i only have my craftsman 250 pc kit and a snow filled parking spot.

thats why i go to my dads in pburg to do most work.

J-rod
02-20-2007, 08:27 AM
i do apologize for thinking this was a good place for help. i just figured alot of you all have or have had fox 5.0 and probably have ran a UD pulley at one time and would know what size to buy. i know how to measure for a fvcking belt. I did not once ask how to measure for a belt.

every fvcking time i post something on here for help all i get is smartassed remarks and comments on me being fvcking stupid.

Steve-0
02-20-2007, 08:41 AM
The stock belt may work, I know it does on the 95. So it might work fine with the stock one in there. If it ends up being slighty loose after a while, just get a slightly smaller belt for when the other one wears out.

87notch
02-20-2007, 10:28 AM
Well, without knowing the dia. of the pulley, it might be easier picking this weeks winning Powerball Numbers. :dunno:

:rofl:

87notch
02-20-2007, 10:34 AM
i do apologize for thinking this was a good place for help. i just figured alot of you all have or have had fox 5.0 and probably have ran a UD pulley at one time and would know what size to buy. i know how to measure for a fvcking belt. I did not once ask how to measure for a belt.

every fvcking time i post something on here for help all i get is smartassed remarks and comments on me being fvcking stupid.

I dont think that anyone thinks your stupid but when you get all bent out of shape over some jokes people are going to continue to do it,just to get a reaction out of you thats what makes it funny.

Twin01cobra
02-20-2007, 03:30 PM
:iagree:

J-rod
02-20-2007, 06:23 PM
it gets really old being the butt of all the jokes around here.

i asked if anyone knew the belt size for runing a UD crank pulley. never did i ask how do you measure for a belt. there is a big difference.


and now its fvcking raining outside....hooray for me....maybe you all can make some kind of joke out of that.

J-rod
02-20-2007, 06:26 PM
FWIW - you can run the stock belt when installing the crank/water pump/alt pullies together...from what i have found.

just the crank requires a little shorter belt that nobody can answer.

INSANELY CRAZY
02-20-2007, 07:39 PM
You guys crack me up. SCS has some of the best entertainment.:rollingfloorrlol:

Jared, I'm sure your a good guy, but sometimes I think you should drive a ricer with a coffee can and a dragster wing on the back.

or this.... http://pittsburgh.craigslist.org/car/281557852.html :biglaugh:

hey jared, im thinking try a 72" belt and go from there... as long as you dont run the belt you can take it back to find the correct size.:awsome:

fast4ord
02-20-2007, 07:47 PM
it gets really old being the butt of all the jokes around here.

i asked if anyone knew the belt size for runing a UD crank pulley. never did i ask how do you measure for a belt. there is a big difference.


and now its fvcking raining outside....hooray for me....maybe you all can make some kind of joke out of that.

We must not know, thats why we told you to measure, i never ran only a crank pulley, always ran all the underdrive pulleys. They suck anyway, overheat, and hardly charge for a couple horespower??:dunno: I really think i am going to quit reading this B.S.

lib88stang
02-20-2007, 09:40 PM
I have ran soo many different size belts on the car since I've had it. with underdrives, with no AC, with no AC or smog, and then I decided to route the belt a differnt way. So there are many sizes you may need or can use thats why you should measure.... And I'm sure some how its your fault its raining:yes:

Pure Stock
02-27-2007, 10:15 PM
Who needs serpentine belts:rolleyes: