GMC Truck Forum banner

1 - 8 of 8 Posts

·
Registered
Joined
·
472 Posts
Discussion Starter #1
I'm swapping out my gears but leaving the factory diff in it. However after I break in the new gears I plan to run synthetic gear oil….is that a bad idea with the factory locker since i have no clue what oil was in it before. :think:
 

·
In Valor There Is Hope
Joined
·
8,277 Posts
Should be fine


Sent from my iPhone using Tapatalk
 

·
Premium Member
Joined
·
6,277 Posts
i ran synthetic till my G80 blew
 

·
Premium Member
Joined
·
6,277 Posts
because G80 is junk...had amsoil severe gear oil in there
 

·
Registered
Joined
·
1,045 Posts
GM has used full synthetic in the rear regardless of what diff since at least 99
 

·
cunts
Joined
·
2,743 Posts
Haha did it blow bc of the oil or something else?
Because race truck and dez romping.

Sent from the land of teepee's and buffaloes
 
1 - 8 of 8 Posts
Top