JonJon5.0

My 91 RS got a bad alternator it’s a 305 I got a alternator from a 2002 Chevy suburban with a 5.3L Vortec i bolted it on but the Connectors is different can I cut the positive feed wire from the truck harness and crimp it to the 3rd gen Harness and plug it in will this actually work ?
I never done it before but my elders told me it’s a old small block Chevy trick of the trade they used to do back in the day oh and my battery is brand new

mikeceli

iTrader: (2)

I'd recommend you obtain a new or quality reman stock alternator and install it. it was good for millions of GM vehicles, why monkey around?

JonJon5.0

This Alternator was $30 and rock auto wanted $60 I choose the cheaper option that’s why I’m trying to make this work due to limited budget at this time
im starting to have second thoughts though...

8t2 z-chev

if the suburban alternator you mounted is an AD244,there are a few threads on here about using those in 3Gs.

JonJon5.0

This was a fail I’m just gonna buy the $60 one I screwed up it’s whatever everybody makes mistakes

mikeceli

iTrader: (2)

Everybody make mistakes. I wish you luck. FWIW, Rockauto is my first source on lots of parts. But on alternators, starters and sometimes waterpumps, I check locally also, because they usually have lifetime warranties and shipping one of those back, for an exchange is not something I would want to do.

Well, I just checked Orieley and they get $106 for a lifetime reman, considerably more than rock.

Nutro

iTrader: (1)

Ok so I hooked up the battery and have 12V constant on body harness red and key on 12v at tan. I hooked the tan body wire to the F terminal on Alt and started car and I'm getting 13.42V at idle. It's all been sitting for a week or 2 with no run time.

QwkTrip

iTrader: (22)

13.42V is above the Open Circuit Voltage of battery..... Alternator is definitely charging.