Alternator issue?
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
Likes: 11
From: Exmore, VA
One minor item, if your truck has an ammeter, it can be a royal PITA to deal with since it uses a shunt to produce the signal. Just be aware that the charging system on 80-86 trucks is strange to say the least.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
Here is some more info on doing the swap plus a longer list of donor cars/trucks. This mod is extremely simple and it may very well work for you as a direct swap with no mods needed.
3G alternator FACTS (its wins agian!) - FSB Forums
Most people run bigger positive and negative cables for the upgrade too.
3G alternator FACTS (its wins agian!) - FSB Forums
Most people run bigger positive and negative cables for the upgrade too.
You NEED to run bigger cables, the ones you have will melt.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
Signal to noise ratio is an old radio term.
Signal-to-noise ratio - Wikipedia, the free encyclopedia
"Signal-to-noise ratio is sometimes used informally to refer to the ratio of useful information to false or irrelevant data in a conversation or exchange. For example, in online discussion forums and other online communities, off-topic posts and spam are regarded as "noise" that interferes with the "signal" of appropriate discussion."
Some of them must have a shoe size larger than their IQ.
Signal-to-noise ratio - Wikipedia, the free encyclopedia
"Signal-to-noise ratio is sometimes used informally to refer to the ratio of useful information to false or irrelevant data in a conversation or exchange. For example, in online discussion forums and other online communities, off-topic posts and spam are regarded as "noise" that interferes with the "signal" of appropriate discussion."
Some of them must have a shoe size larger than their IQ.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
You have a battery charging meter in the truck?
If you install a 3G alternator it will just cook, or catch on fire.
Yes. You can disconnect it, as I and Bill suggested.
There are plenty of wiring diagrams linked in the thread and the alternator install tech I posted.
If you install a 3G alternator it will just cook, or catch on fire.
Yes. You can disconnect it, as I and Bill suggested.
There are plenty of wiring diagrams linked in the thread and the alternator install tech I posted.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Yup. And I seem to have contributed to the background noise rather than the signal. Sorry. 
(Oh, I guess I missed that the S/N ratio was explained, so here I go with more noise. But, as an ex-amateur radio operator I understood at least.)
(Oh, I guess I missed that the S/N ratio was explained, so here I go with more noise. But, as an ex-amateur radio operator I understood at least.)
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
LOL! No, luckily I didn't contribute to the noise over there. I guess I missed that point, and probably several others as well. I'll go back to axle bearings and seals.
Thread
Thread Starter
Forum
Replies
Last Post
livinzez
1987 - 1996 F150 & Larger F-Series Trucks
2
Aug 26, 2018 10:10 PM
WheelerJeremyS
1973 - 1979 F-100 & Larger F-Series Trucks
10
Jun 20, 2018 07:44 PM
johnarla
1997 - 2006 Expedition & Navigator
5
Mar 28, 2013 11:18 AM
twowheledfreak
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
5
Oct 19, 2004 07:21 PM
