Summit Underdrive Pulleys
I know we've talked about this set in the 04-08 forum, just thought I'd "rate" them over here.
Put about 600 miles on them already (had a couple long trips Sunday and Tuesday). Fuel economy is up, not quite a whole mpg but I've only put a tank and 3/4 on them so far. Could be coincidence, could be the pulleys. As for performance, I'd like to think I can tell a difference. Not sure how much you can "feel" 15hp on a 3500lb truck, but when I stomp the gas to pass someone on a 2 lane I feel like I get up to speed and around them a little quicker. Install wasn't difficult, maybe I have a good taste in my mouth because I virtually did the install twice and the last time was a breeze. Summit's kit takes the stock length belt, Goodyear's website has a part number cross reference tool, use that, find you a Gatorback at stock length and IGNORE summit's recommendations. They don't have a clue what belt goes on an 04 4.6L. They tried 3 times for me, wrong all 3 times. Price was GREAT at $134. |
Glad they are working out for you!
Now if I can find the time to put mine on! I know it won't be this weekend. Lars |
**UPDATE**
Have put about 800 miles on my truck with the pulleys, and between both city, rural, highway miles, I'm consistently getting 1-1.5 more Miles per gallon. Didn't really want to comment that early, could have been conditions, but 800 miles of an extra MPG+ I think speaks for itself. Very pleased. |
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Lars |
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I'll double check again tomorrow night at softball. |
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Seeing your thread about underdrives reminded me I picked one up a couple of years ago @ a going out of business performance shop sale. I forgot I had it! :doh:
If anyone is interested I'll sell this one for what I paid. 85.00 bucks plus shipping. http://inlinethumb38.webshots.com/41...600x600Q85.jpg http://inlinethumb50.webshots.com/30...600x600Q85.jpg http://inlinethumb22.webshots.com/43...600x600Q85.jpg http://www.dougherbert.com/underdriv...t-p-25782.html |
That's a STEAL! Wish you had found them before I bought mine! :)
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