1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Adapting A Gm Alternator To A L134 And Pulley Selection

Discussion in 'Flat Fender Tech' started by ojgrsoi, Jan 2, 2022.

  1. ojgrsoi

    ojgrsoi Retired 2024 Sponsor 2023 Sponsor 2022 Sponsor



    Good info and explanation of pulley & belt selection when changing to 10SI or 12SI GM alternators. It appears that the correct belt could also slightly impact the RPMs of the fan and water pump.
     
    ojgrsoi, Jan 2, 2022
    #1
  2. CHUGALUG

    CHUGALUG Member

    No need to buy a special tractor Alternator. Just go to somewhere like Speedway Motors and buy a Pulley for a Ford Flat head V8 and put it on the alternator of your choice. You can get them in Steel or Aluminum. Made to perfectly fit a 5/8" belt
     
    CHUGALUG, Jan 2, 2022
    #2
    Lockman and Ol Fogie like this.
  3. Buster1

    Buster1 New Member

    Thanks for sharing that Mark. When I replaced my crank pulley I was more concerned about pulley groove size and alignment of all the grooves/belt. I hadn’t considered the size of the pulley and how that affects RPM of the other pulleys.

    Thanks!
     
    Buster1, Jan 3, 2022
    #3