Allison Transmission Service Package w/ TRANSYND 668 SYNTHETIC Fluid

This is the prefered tranmission fluid to be used in your 2001-2019 Duramax 2500/3500HD that has a Allision Transmission! To drain and refill your Allison transmission fluid, you will need roughly 2.5 gallons. These are sold in 1 gallon jugs, so you will need x3 to do a full service.
 
For the spin on transmission, those are straight forward on all 2001-2019 Allison Transmission and only one option.
 
As for the internal transmission filter, the one included in this package will only fit "standard pans" which is the transmission pan from 2001-2019 that came factory with the truck. If you have an aftermarket deep pan on the truck, you will want this internal filter found HERE instead.
 
If adding an EPC fooler on your 11-19 LML/L5P, we also stock those and can be found HERE
 
The Allison transmission pan gasket is reuable. If you feel yours is old or should be replaced, we sell those separately right HERE
 
Any questions, let us know!