I am thinking about getting underdrive oullies but am worried about the effects they will have on the a/c and electrical system. I will be putting in a system(power drainer), I live in florida so I dont want to loose any a/c abilities. I am interested in the power gains, and possibly the small mileage gain. So what can I expect?

 

Just get the alternator pulley as well and you'll have no difference with the a/c

 

I have had it now for like almost a year an the only thing you see i diff in is the alt but i have been to broke to buy that pulley you can tell the the diff when you put it on the is alot more low end torque

 

The alternator one doesnt come with the kit. Whats the deal?

 

Yeah it does if your buying the kit from stuffforyourranger.com/store

 

what kit are you talking about an from who?

 

They wont void a warrenty will they? That is an expensive kit. Any others that are cheaper? I can get a set for my mustang for like 100 bucks.

 

no i have all kinds of work done on my truck they don't say any thing but if it was something major with the motor i would take it all off before taking it in just to be safe

 

i would keep your old pulleys just in case. i just put the underdrive pulleys on my truck. i have a 2000 watt amp and 4 130 KCs, i haven't have any problem charging or anything yet.

 

Sounds good. So you can feel the difference, and do they save any gas? I want them more and more.

 

I just bought my kit from Wayne. He's a good legit guy on the real.

Can't wait till I get em.

 

i know i felt a difference, but i put the pulleys, headers, and a tuner in at hte same time. i'm not sure on the gas part because my foot has been in the floor since i installed all of the stuff.

 

Only reason it's cheaper is because you have a 5.0, parts are plentiful and cheap for those motors.. I believe there are but only a couple of companies who make UDP kits for the 3.0L Vulcan, and wayne (www.stuffforyourranger.com) is one of them. I bought mine through him and loved them, it was one of the best mods I did to that truck.

 

Mine reduced alternator output to unacceptable levels. I used a smaller pulley on the alternator to compensate, but it was still too low. I took the underdrive pulley off, but left the smaller alternator pulley on.

I have a winch though, so my current demands are occasionally very high.

 

Well they are future plans. I've got plenty of power now, but when I add the 32's I want, i am sure I will need them. Also, when u buy a tuner. Does it have to stay connected, or can someone tune my computer for me that has one.