alternator, 105 vs 130 ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

crazy longhorn · 03-19-2012, 12:00 PM

I have an 02 silverado, that I am pretty sure is a 105 amp alternator(has a bearing talking to me). My parts truck is a 2000 GMC (full power), so I assume a 130 amp alternator. My ? is will they swap, with a belt change? both trucks have V8 engines. crazyL

GCncsuHD · 03-19-2012, 01:01 PM

Full power doesn't necessarily mean it has the bigger alternator. But I did the 130A alternator swap on my 01 (full power, 105A alt stock) when I added electric fans. The only thing you need is the longer belt, the rest bolts in and plugs in from those years. IIRC 05 or so they changed the plug on the alternator when they changed the electrical system to the RVC system. There is an RPO code in the glove box that determines 105A vs 130A alternator, as well as a stamp on the alternator itself. I do not recall the RPO codes offhand.

crazy longhorn · 03-19-2012, 05:20 PM

Thanks! She was a direct bolt(got rid of the squealing bearing)

I hate to "steal" from the pile of parts headed for the hotrod....but gotta keep the DD rolling....thanks again,crazyL

03-19-2012, 12:00 PM	#1
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	alternator, 105 vs 130 ? I have an 02 silverado, that I am pretty sure is a 105 amp alternator(has a bearing talking to me). My parts truck is a 2000 GMC (full power), so I assume a 130 amp alternator. My ? is will they swap, with a belt change? both trucks have V8 engines. crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

03-19-2012, 01:01 PM	#2
GCncsuHD Charlie Daniels w/ a Tq Wrench Join Date: May 2009 Location: Statesville, NC Posts: 1,570	Re: alternator, 105 vs 130 ? Full power doesn't necessarily mean it has the bigger alternator. But I did the 130A alternator swap on my 01 (full power, 105A alt stock) when I added electric fans. The only thing you need is the longer belt, the rest bolts in and plugs in from those years. IIRC 05 or so they changed the plug on the alternator when they changed the electrical system to the RVC system. There is an RPO code in the glove box that determines 105A vs 130A alternator, as well as a stamp on the alternator itself. I do not recall the RPO codes offhand. __________________ ΜΟΛΩΝ ΛΑΒΕ 67 C10 Shortbed "Great Grandpa's Truck" I6 3 on the Tree 71k original miles 5.3 swap in the works 69 K5 Blazer-Family Beach Cruiser Project 78 K30 Dually Semi-Retired Fire Truck 350/SM465 35"s SOLD01 2500HD ECSB 6.0 4x4 5.13's 8" lift 38"s

03-19-2012, 05:20 PM	#3
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Re: alternator, 105 vs 130 ? Thanks! She was a direct bolt(got rid of the squealing bearing) I hate to "steal" from the pile of parts headed for the hotrod....but gotta keep the DD rolling....thanks again,crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.