2nd Gen 1GRFE Alternator Rebuild - Mud cleanout

Do you remember if you could take apart the alternator without cutting off the diode assembly to replace the main bearings. My alternator still works great but one / or both bearings are going bad... 30 bucks for quality bearings vs 280+$ for a new unit sounds much better to me.

 

I didn't take mine that far apart but from a couple youtube videos it looks like you may be able to take the 4 case bolts out and the field windings may stay in the back half while you replace the bearings
https://youtu.be/xro_JS03hN0?t=415
https://www.youtube.com/watch?v=2cCWS08QxeI
https://youtu.be/LqvTHJVQU5g?t=410

 

@nd4spdbh I am about to uninstall a perfectly working alternator from my ‘11 DCLB w/tow package to replace with a HO mechman if you are interested in buying my used oem.

 

saweeet!

Now to find bearing sizes....

Naw im good, my alternator looks brand new out of my 2013, Ill just replace bearings.

 

@Sandman614 thanks for the write up! Just replaced the rectifier tonight, testing tomorrow before reinstall.

Edit: alternator checked out good today!

 

Still good. Have now added a diode to the charge circuit to give my AGM dual batteries the higher voltage that they are intended to have.

https://www.tacomaworld.com/threads/agm-battery-charging-alternator-voltage-booster.611314/