LML trans pressure boxes

DPC

Member
Jan 2, 2012
323
1
18
Adams, TN
Any input on pressure boxes for the 2016 Allison? I see BD and ATS make one and wanted to see if they are any better then the G-solenoid mod.

I've already done the solenoid mod and now have a transmission tore down with smoked C1 clutches. After building it I was thinking of adding a pressure box or will the internal line pressure mods from the kit be enough?

Truck has a 100hp tune. Thanks.
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,713
774
113
Texas!!!
If you are using a pump and valve body spring kit to raise pressure, do NOT use anything to modify pressure controls beyond what the stock TCM with stock tuning does. You will damage something.
 

duramaxzak

Wanna be puller!
Nov 22, 2008
2,431
14
38
Minnesota
I don't think you want to run both at the same time, it's either one or the other.

I'm sure Mike L will chime in.