GM Allison® 1000/2000/2400 Valve Body Layout
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. Each layout:
- Displays an exploded view location guide for individual valve trains
- Identifies symptoms and recommended solutions for quality rebuilds
- Provides active links to view specific part details
- Lists any tools/fixtures required for part installation
- Illustrates correct part orientation
With more than 60 layouts to choose from, these convenient, go-to reference guides are valuable resources for any shop.
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Related Units
Related Parts
Required
Recommended
1000/2000/2400
Lube Regulator & Converter Relief Spring Kit 37000-01K
Fits '03-earlier, 6 solenoid units.
-
Helps cure:
- Overheating
- Broken spring
- Delayed engagement
Required
Recommended
1000/2000/2400
E-Shift Valve Spring 37000-02
Fits '00-'09 units only.
-
Helps cure:
- Code P0872
- Code P1711
- Pressure switch stuck on
- Failsafe mode
- 3rd Gear starts
Required
Recommended
1000/2000/2400
Trim Valve & Spring Kit 37000-12K
Fits '00-'09 units only. The F-trim spring is applicable to '00-'05 valve body casting only.
-
Helps cure:
- Premature clutch wear
- Inability to alter clutch apply pressure curve
Required
Recommended
1000/2000/2400
Oversized E-Shift Valve Kit 37000-15K
Fits '00–'09 units only.
-
Helps cure:
- Code P0872
- Code P1711
- Pressure switch stuck on
- Failsafe mode
- 3rd Gear starts
Required
Recommended
1000/2000/2400
Oversized Control Main Relief Valve 37000-19
Fits ’00–’15 units only.
-
Helps cure:
- Shift concerns
- Loss of shift solenoid control pressure
Required
Recommended
1000/2000/2400
Oversized Manual Valve Kit 37000-28K
Fits '00–'15 units only.
-
Helps cure:
- Low line pressure
- Delayed Drive
- Delayed Reverse
Required
Recommended
1000/2000/2400
Oversized F-Trim Valve Kit 37000-30K
Fits '00–'05 units only.
-
Helps cure:
- Overheated transmission
- Code P0741
- RPM surge
- TCC apply & release concerns
Required
Recommended
1000/2000/2400
Oversized Gain Valve Kit 37000-24K
Fits '00–'09 units only.
-
Helps cure:
- Shift concerns associated with circuit pressure loss
Required
Recommended
1000/2000/2400
Manual Valve Selector Pin 37000-29K
Fits '00–'15 units only.
-
Helps cure:
- Delayed Drive
- Low line pressure
- 1-2, 2-3, 4-5 Flares
While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.