i have a 2006 FXSTS that i want to change they oil and tranny myself, I know I can use a 2050 syn for the oil but what non harley brand can i use FOR THE transmission

 

Take your pick, there are a bunch out there. I recommend using a true gear oil over regular 20-50. At the shop we use Amsoil 75-110 Severe Gear in HD transmissions...

 

i run redline, been very happy with it so far.

 

I run Red Line Heavy Shockproof in Reaper's tranny. Works great.

Cheers!