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  #1  
Old 04-29-2010, 11:20 AM
Tom Tom is offline
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Default 4.0 ASP 25% Under Drive Crank Pulley - Which Belt?

So I bought a used ASP 25% under drive crank pulley for my 4.0 engine and I'm trying to find the appropriate belt size I need.

I've contacted some companies and did some googling but haven't found anything concrete. Anyone know what size belt I need or have a model #?
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Old 04-29-2010, 02:04 PM
STL STL is offline
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Default Re: 4.0 ASP 25% Under Drive Crank Pulley - Which Belt?

http://www.stuffforyourranger.com/st...products_id=54

Quote:
For 4.0 ASP Crank only, customer should supply a belt 2" shorter than stock
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Old 04-29-2010, 02:33 PM
Vrod21 Vrod21 is offline
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Default Re: 4.0 ASP 25% Under Drive Crank Pulley - Which Belt?

Ranger/Sport Trac/Explorer 4.0 Liter:

4060865 with ASP Crank Pulley, Underdog Water Pump Pulley and Underdog Alternator Pulley

For 4.0 ASP Crank only, customer should supply a belt 2" shorter than stock

For 4.0 ASP Crank and Underdog Alternator Pulley, customer should suplly a belt 2.5" shorter than stock.


*from stuffforyorranger.com
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Old 04-29-2010, 07:02 PM
Tom Tom is offline
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Default Re: 4.0 ASP 25% Under Drive Crank Pulley - Which Belt?

Thanks guys, I emailed stuffforyourranger.com a while back asking to purchase whatever size belt I needed but haven't heard back.

So I looked up RockAuto for my truck and see this:
Quote:
GOODYEAR Part # 4060868 {6 Ribs / Effective Length 86.875" / Outside Length 87.625"}
So I need something 2" shorter...

Goodyear gatorback site = http://www.goodyearep.com/ProductsDetail.aspx?id=3128

I don't see one that is exactly 2" shorter, which one of those should I get?

EDIT: I'm thinking 4060845 84.5 / 85.25
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2006 Ford Ranger Sport 4.0 2WD on 32x11.50R15s
-3" Doetsch Spindle Lift


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  #5  
Old 04-30-2010, 01:52 AM
STL STL is offline
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Default Re: 4.0 ASP 25% Under Drive Crank Pulley - Which Belt?

I Cant find on the internet what size the stock belt is.
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