Few Questions...(Alternator and front end)
how many amps are u getting for $140? i just like to shop around and considering u just spent cash on repairs as is, but checking the price on getting a rebuild isn't always out of the question espically if u have a local shop that has a good rep
Shop around, I got mine for $90 from a hole in the wall outfit, just as good as a name brand store.
Just make sure you get the right one, they have different amperages, and they will all bolt up, more or less, and have the same connections.
I'm guessing you'd need the highest output, which is around 120 amps, if I recall correctly - 3 were used, 90, 110 and 120.
Side by side you can barely tell the difference, and the parts store can't tell which one you need.
Good way to tell what your output currently is is to check the ALT fuse.
Make sure the pulleys are an exact match too, if they aren't you'll need to swap em before you turn in the core.
Just make sure you get the right one, they have different amperages, and they will all bolt up, more or less, and have the same connections.
I'm guessing you'd need the highest output, which is around 120 amps, if I recall correctly - 3 were used, 90, 110 and 120.
Side by side you can barely tell the difference, and the parts store can't tell which one you need.
Good way to tell what your output currently is is to check the ALT fuse.
Make sure the pulleys are an exact match too, if they aren't you'll need to swap em before you turn in the core.
Last edited by xray99; Feb 23, 2010 at 12:49 PM.
thanks for the input....the 140 alt. is 110 amps....but if mine is a 90 amp, can i have it rebuild to be a 120 amp? there is a good shop don the road that rebuilds starters and alternators
Voltage regulation is controlled by the PCM, not within the ALT or external unit as with older vehicles.
I looked into getting mine rebuilt, not much savings off of just getting a new one.
Didn't look into doing it myself as I needed the truck back on the road by the next day.
I looked into getting mine rebuilt, not much savings off of just getting a new one.
Didn't look into doing it myself as I needed the truck back on the road by the next day.
Though even side by side its hard to tell the difference, there is a physical difference.
The higher output ALTs are heftier, I suppose to accommodate the extra internal windings they need to put out more voltage.
The shop should be able to tell you what you need to know, if you go over the stock amperage you may have to make further mods as well to prevent damage to your system [that wasn't intended for the higher amperage].
I'd stay with stock unless you have a compelling reason not to.
Last edited by xray99; Feb 23, 2010 at 07:32 PM.




