Hemi Truck Club banner
141 - 160 of 791 Posts
I've been thinkin about an U/D pulley. It's about the last performance upgrade I can do without opening the motor. But I've read mixed reviews on them. Mainly charging issues at idle. And traffic can be horrendous here.
At idle.

What is that?

Ha ha
 
Discussion starter · #151 ·
James I hear people run Goodyear gator back belts usually I don't know what belt I should get I just know ill need a shorter length one when this is installed, will get a short belt as well to try for the track.

Any suggestions?
 
Mario, I'm running the same 20% underdrive dampener. On Summit's website they tell you to use a Goodyear Gatorback, and they give you a part# to use. If you look closely the Gatorback is a 6 rib belt, and all of our accessories including the underdrive are 7 rib. Some people may be ok with it, but to me it wouldn't look good, showing an open rib on the pulleys. They don't make a 7rib the correct length we need, but however they do make a 8 rib. Easy fix cut one off. I'm almost positive the belt is for a 05 Ford Expedition. I'll try to verify for you.
 
141 - 160 of 791 Posts