hey guys i have searched but cant find my specific problem i have an 85 4 runner that is efi, engine is from an 84 pickup the alternator mouting is different i want to run the internally regulated alternator but it wont fit what will i need to do to run it. also my alternator harness is butchered up but i still have the plug is there anyone that can dumb down the wiring to my electrical knowledge (which is very little) so i can get this to work ill make my own wiring if someone can tell me what wires to run to what and all that good stuff maybe a simple diagram

 

it sounds like you need to find a mount for the alt. that you want to use. i swapped a 82 22r in place of a 86 22r and all the mounts worked on the 82.

 

did you have to change anything with the regulators

 

is alt. wired for the 85 ? if it is i think the 85 alt. is internally regulated. unless there is a mid year change over. you could look into a gm 1 wire alt. change over. you might do a search on the conversion on yt.

 

I got a mount from an 85 22re I reckon ill put that on and put a gm alt on will a gm alternator mount up though without excessive modification what about the wiring

 

You can go to wattora northwest toys, they have a article on how to use an alt. and wires off a s-10. The gm alt. has a higher output. I don't know how to do a link to the site, maybe someone else can do it for you. The gm 1 wire would probley be the easiest. Is the wiring in the truck for the 85 or the 84 alt. ? There are some links on yt to factory service manuals that would have wiring diagrams.

 

The truck has 85 internal regulator wiring

 

You should be able to match the wires on the plug to the wires in the harness. You might have to unwrap the wires going to the alt., if they are still in the harness. You can work your way back untill you find good wiring.