SunCoast Allison GMax-5 Kit 2001-2005

Product Information

Out with the “0's” and in with the 10's, a SunCoast Exclusive! Now released for your increased horsepower and your heavy hauling needs.

This kit supersedes our SunCoast “Stage IV Kits”

SunCoast engineered this kit and manufactures many key components that have made it possible to hold the torque your Duramax is putting to the ground. They have assembled the best parts available for your Allison 1000 transmission and put it in a kit form to enable us to build you a dependable unit. This kit only upgrades the clutches for C-1, C-2, C-3 and C-4.

Included in the GMax-5-3 kit:

C1 Pack
1- SunCoast C1 Top Plate
8- HEG External Single Sided Frictions (ESSF)
8- HEG Internal Single Sided Frictions (ISSF)
1- SunCoast C1 Bottom Plate

C2 Pack
1- SunCoast C2 Bottom Plate
7- Red Eagle Frictions
4- Kolene .067 thick steels
4- Kolene .086 thick steels
1- SunCoast wavy steel

C3 Pack
1- SunCoast C3 Top Plate with P1 thrust washers
6- SCE External Single Sided Frictions (ESSF)
6- SCE Internal Single Sided Frictions (ISSF)
1- SCE Spring Plate
1- New SunCoast C3 Piston

C4 Pack
1- SunCoast C4 Top Plate
6- SCE External Single Sided Frictions (ESSF)
6- SCE Internal Single Sided Frictions (ISSF)
1- SCE Spring Plate
1- SunCoast C4 Piston

Hydraulic Upgrades include the parts for the Valve body, pump upgrades.

Transgo® Allison Shift Kit® for the 2001-2005 Chevrolet & GMC HD trucks, diesel or gas. This heavy duty kit corrects the common problems with these transmissions; goes into neutral under load, 3-4 slip, burned C2 or C3 clutches, sticks in one gear, won't move after extended parking, loss of pump prime. This kit includes smart clutch control valves for increased durability and Short-Crisp-Smooth-upshifts and kickdowns. This kit also reduces trouble codes. This is the most complete shift correction kit available and definitely the most reputable. Transgo® Allison C1 Quick Fill Valve increases C1 clutch flow over the OEM valve. Transgo® Allison 2001-04 Boost Valve, this valve is the converter flow valve. This valve controls fluid to the converter clutch and cuts back pressure from 250 psi (or so) to 145 psi when the converter clutch applies. This valve will bring that pressure to a more acceptable 170-190 psi, and much more depending on application. We need this extra pressure because all you guys that are running big programs and are pushing the pressure limits for clutch holding power. SunCoast pressure regular shim to increase main line pressure and custom tool to help install as well as a complete paper rubber and seal kit along with a new stator bushing.

This is the hot new rebuild kit out there for the Allison 1000. Get yours today, and don’t leave the track early. 2010 race season is coming up quickly!

Product Options:

Product Code: GMax-5-3