hey has anyone bought an underdog crank pulley. i see that it give your truck more hp and torque. it also clams that it will improve your gas mileage. has anybody tried one and seen if it works? it doesnt even have to be underdog it could be any brand, just want to know if it works.

It works yes. How much it actually improves things is what's debatable.

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2006 Ford Ranger Sport 4.0 2WD on 32x11.50R15s
-3" Doetsch Spindle Lift


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yea it claims to give you a 2-5 mpg. They say the 5 mpg increase is on the highway. And the city driving varies 2 and up. It's $80, do you think it's worth getting it?

Where are you coming up with you're information? Underdog doesn't mention any MPG figures on their site... I've spoken with underdog himself and he said to expect about a 0.5 boost in MPG.

IMHO, it's worth it for the all around improvements.

__________________
2006 Ford Ranger Sport 4.0 2WD on 32x11.50R15s
-3" Doetsch Spindle Lift


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Sorry to pull a old thread up, lazy to make a new one, but how hard is it to install one of these?

__________________
Sunny
2002 Ford Ranger Edge Flex Fuel 2wd
LED Crazy!
Complete Pioneer Audio setup
5000k HID Projector retrofit and 3000k Fogs
Achilles Desert Hawk 255/45/20 with 20'' rims
Looking for a professional retrofitter? Send me a message!

3.0 install: http://underdog-performance.com/How_...nderdrive.html

4.0 install: http://underdog-performance.com/How_...nderdrive.html

__________________
2006 Ford Ranger Sport 4.0 2WD on 32x11.50R15s
-3" Doetsch Spindle Lift


Using the forum:
How to Post on the Forum
Creating a signature (do this before asking any questions)
Upload an Avatar (image of your Ranger)
How to Post Pictures on the Forum
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Things to do:
Participate in Truck of the Month
Participate in the Ranger Photo Contest
Participate in the Non-Automotive Photo Contest
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Shop at the FordRangerForum.com Store

Thanks Tom, came through for me again

__________________
Sunny
2002 Ford Ranger Edge Flex Fuel 2wd
LED Crazy!
Complete Pioneer Audio setup
5000k HID Projector retrofit and 3000k Fogs
Achilles Desert Hawk 255/45/20 with 20'' rims
Looking for a professional retrofitter? Send me a message!

its easy, if you can get the correct lenth sockets and everything, you can ge it off and the new one back on with out taking the fan shroud off, to get the fan off you need a special tool so try to get a lenth that makes it were you don tneed to remove the fan.

Can you guys guide me where to get a crank pulley to upgrade my stock one? I have a 2008 Ranger 3.0.Thanks