offroadrider12

My old one is on its way out, the volt gauge is fluctuating while driving and the lights are dimming. Truck said battery not charging when started up at first.

I currently have a 03 RCSB 2wd with a 5.3L and 105A alt.

I was hoping I could upgrade to the 145 or 130A model.

All I would need would be the AD244 alt (130-145A) and the serp belt for the higher amp alternator correct?

The alternators I was considering were:

Tuff Stuff 145A alternator from summit
http://www.summitracing.com/parts/TFF-8237/

or the 130A from DB Electrical.
http://www.db-starter-alternator.com...2005%20%208237
http://www.db-starter-alternator.com...2005%20%208237

I am on a tight budget since I'm going to school still, I want something good an not crap.

All input is appreciated, thank you.

Atomic

iTrader: (42)

you dont need a new belt

offroadrider12

when I was looking on the parts website the 145A option uses a 93 5/8" belt while the 105A uses a 92 7/8" belt, so I was thinking I needed a longer belt, plus my serpentine belt is cracked anyway.

99LsSilverado

iTrader: (3)

You can reuse the original belt but its really tight and puts alot of pressure on the other accessories.

SILVERADO11

Get your self the new belt and 145 amp and you will be happy!

Bigredmariner

iTrader: (6)

Yes, get the new belt. The old belt may work if you force it on the pulleys but you will be stressing the hell out of it. Just get the correct length belt and be done with it.

GMCtrk

iTrader: (27)

There was absolutely NO way my stock 105A belt was going to work with the 145amp alt. And it's been on there for 10 years, plenty stretched out.

offroadrider12

ok, thanks for the belt advice, but are the alternators I listed any good? or should I just get an autozone special with a lifetime warranty?

Atomic

iTrader: (42)

Thats odd, my stock belt fit fine over my larger alt, still plenty of movement in the tensioner.

If you really want to save some cash look on car-parts.com for some local salvage yards for a 145 alt. I see them there from $50-$70.

02_Orange_D1SC

iTrader: (30)

thats what i did looked on car-parts.com