| Mike, I stated that the TTS kit comes with "a bit more" The main line pump shim which increases main line pressure is included in the TTS and SC stage 4, but not the SC stage 3. ATS also increases pressure in this area by use of a spring instead of a shim.
Lately this shim has been discussed as maybe not nessesary, the TTS kit includes it and all the other aftermarket Allison companys address main line pressure, so I feel it is part of the total package. I'm not a Allison expert, and do not design kits, I just sell what has worked for me in the past under extreme conditions.
Take care,
Rob | 
Linear Mode
