I believe my system is ok but I wanna upgrade alternator. I think my stocker is 105 amp.. Wonderig if increasing to 130 amp will help with my electrical system? My voltage meter jumps all over place when my e- fans engage in high..

 

Yea....doing the big 3 upgrade will really help as well.

 

Big3 upgrade????

 

and maybe a tahoe alt also. i believe mine is like 160, but its a loaded tahoe. and the big three upgrade for sure. search for it, its basically installing big gauge wire for your batt ground, power and alt wire.

 

i knoe the 130amp alt bolts right in place of a 105 will the tahoe as well? im assuming it might need just a little longer belt as thats the only differences between the 105 and 130amp

 

check out this thread
https://www.performancetrucks.net/fo...ighlight=efans

 

thanks guys. the info was very helpful.

 

not sure on the tahoe alt. mine came stock but if all else the same just get a tahoe belt too.

 

Baring any special police packages or dealer installed options, there were only two amp ratings on alternators on fullsize trucks/tahoes/suburbans. 105amp and 130/145amp.

There are also different mounting positions and pin layouts, so check for compatibility first.

 

at auto zone there is a 160amp for my tahoe depending on brand of the alt.