scooterstang

i want to put on bbk underdrive pulleys. will this cause a big charging problem? anything else i would HAVE TO DO to get the best performance out of these?

samseed101

It depends on your alternator and what other things you have sucking down the life of the battery. I have a 95 GT which has a bigger alternator, so it wasn't a problem for me. Although sometimes I would run into a problem at idle. But then again, that was when it was raining at night and I had my stereo on... wipers, headlights, fan on to keep windows from fogging up, and a 1000 watt subwoofer, LoL.

ooticamitica

if you wanna keep the stock alternator just dont put the pulley one, otherwise get a bigger alt.

Stanpower

I think if you have a gt from 93 and under you might have a charging problem............

Ninety5five0

I wouldnt get the bbk ones, they are WAY over priced, they all do the same thing....Check out ebay for good deals, i'm sure you can get them for under 50 bones.

92hatchLX

I got the MAC ones, they fit great and have worked fine now since February, they were $60 for all 3 of them. If you don't want to have charging issues just don't install the alt. pulley, plus it's a pain in the *** to install anyways.

1993 5.0

so you put your alt pulling on and haven't had any problems?

ptown87

I have bbk ones and still have my stock alternator. I don't have any problems. It has never stalled out on me. some people have troubles and some don't...i say go ahead and put them on and if you do run into charge trouble you can take them off or put a bigger alt in. Not a big deal either way.

Ecstasy

screw bbk and mac for pullies, goto summitracing and buy hte march, its like $49 for them.

83FoxBody

I want to add to this, because I'm a little confused too. I was worried about the same thing, and I will probably just get a larger alternator. However, what do you guys imply by "larger"? More amperage? If so, how many amps in a stock unit, and how many should I be shooting for? I always see alternators for sale, but never know if the amperage is right.

Thanks