August 21, 2013
Symptoms:
- Burnt clutches
- High TCC slip RPM
- Shift concerns
- Low cooler flow
- Harsh shifts
- Clutch slippage
- Overheated transmission
- Code P0218
- Code P0741, P0742
Cause:
Loss of oil pressure due to worn components in critical oil circuits and/or lube related failure.Correction:
The parts in this Sure Cure kit repair and restore key areas most prone to TCC-related transmission problems and other issues affecting shift quality.Warning:
Use of an arbor press is required for correct installation of bushings. Do not use a hydraulic press or a bushing driver/hammer combination to install, as doing so may distort the bushing and cause fitment issues.
6L80, 6L90
The Sure Cure® Kit
Part No. SC-6L80-6L90
View Instructions Find a Distributor
Sonnax Sure Cure kit SC-6L80-6L90 for GM 6L80 and 6L90 units is a comprehensive reconditioning package featuring the best Sonnax products developed to help rebuilders restore and enhance transmission performance. Sure Cure components are the same Sonnax parts sold individually to resolve common valve body complaints as well as other transmission problems. The high-quality Sonnax parts in each Sure Cure kit repair worn areas and protect the transmission against future damage. Plus, each kit comes with an easy-to-read, step-by-step installation guide that covers the inspection and repair of the most critical areas of the valve body.
- Restore shift quality and reduce comebacks
- Repairs biggest trouble areas to reduce comebacks
- Includes step-by-step instructions for comprehensive valve/pump body restoration
- Oversized Pressure Regulator & Boost Valve Kit
- O-Ringed End Plugs (6) 6 End Plugs, 9 O-rings (3 Extra)
- Heavy Duty 1-2-3-4 Piston
- Compensator Feed Regulator Valve Kit
- Pump Vanes (13)
- Oversized TCC Regulator Valve Kit
- Oversized Converter Feed Limit Valve
- Oversized Actuator Feed Limit Valve
- Checkballs (10) .25" dia., 2 Extra
- Stator Support Bushing Kit
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. See all Sonnax valve body layouts.
GM 6L45, 6L50, 6L80, 6L90 Valve Body Layout
January 30, 2018
GM & BMW 6L80 Family Identification Guide
The Sure Cure®
Comprehensive Kit for Big Problems You Don't Want Back
Knowing exactly what parts to replace in troublesome transmissions is an ever-increasing challenge, but Sonnax Sure Cure kits solve this problem for you. Each kit is a comprehensive reconditioning package featuring the best Sonnax products developed to help rebuilders restore and enhance transmission performance.
Related Sonnax Parts
Required
Recommended
Oversized Pump Base Plate VB-06
-
Helps cure:
- Some worn valve & pump bodies cannot be salvaged
Required
Recommended
Required
Recommended
200-4R, 32RH, 45RFE, 46RE, 46RH, 47RE, 48RE, 4L60, 4L60-E, 4L65-E, 4L70-E, 4L80-E, 4L85-E, 4R100, 4R44E, 4R55E, 4R70E, 4R70W, 4R75E, 4R75W, 4T60-E, 4T65-E, 545RFE, 5R44E, 5R55E, 60-40LE, 60-41SN, 65RFE, 66RFE, 68RFE, 6F35 (Gen. 1), 6F35 (Gen. 2), 6F35 (Gen. 3), 6F50, 6F55, 6L45, 6L50, 6L80, 6L90, 6T30 (Gen. 1), 6T30 (Gen. 2), 6T40 (Gen. 1), 6T40 (Gen. 2), 6T45 (Gen. 1), 6T45 (Gen. 2), 6T50 (Gen. 1), 6T50 (Gen. 2), 6T70 (Gen. 1), 6T75 (Gen. 1), A340E, A340F, AODE, E4OD, TH200, TH200C, TH400, TH425
Checkball 10000-08
- Material: Imidized Plastic
- Dia.: 0.250"
-
Helps cure:
- Lost or damaged component
Required
Recommended
6L45, 6L50, 6L80, 6L90, 6T30 (Gen. 1), 6T40 (Gen. 1), 6T45 (Gen. 1), 6T50 (Gen. 1)
Compensator Feed Regulator Valve Kit 104740-09K
Required
Recommended
6L45, 6L50, 6L80, 6L90
Oversized Actuator Feed Limit Valve 104740-12
-
Helps cure:
- Solenoid performance codes
- Clutch failure
- Wrong gear starts
- Harsh shifts
- Soft shifts
Required
Recommended
6L45, 6L50, 6L80, 6L90
Oversized Converter Feed Limit Valve 104520-11
-
Helps cure:
- High TCC slip RPM
- Code P0218
- Code P0741
- Overheated converter
- Inadequate lubrication
- Excess converter pressure
Required
Recommended
6L45, 6L50, 6L80, 6L90
Oversized Pressure Regulator & Boost Valve Kit 104520-07K
-
Helps cure:
- Erratic line pressure
- High line pressure
- Low line pressure
- Clutch slippage
- Harsh shifts
- Low cooler flow
- Burnt clutches
- No cooler flow
- Overheated transmission
- Converter concerns
Required
Recommended
Oversized Pump Base Plate VB-06
-
Helps cure:
- Some worn valve & pump bodies cannot be salvaged
Required
Recommended
6L45, 6L50, 6L80, 6L90
Oversized TCC Regulator Valve Kit 104740-07K
-
Helps cure:
- Code P0741, P0742
- High TCC slip RPM
- Overheated fluid
- Failsafe mode
- Harsh shifts
- Harsh TCC apply
- Loss of fuel economy
Required
Recommended
Required
Recommended
6L80, 6L90
Stator Support Bushing Kit 104036AK
- Bushing Style: Precision
- Material: Steel-backed bronze
-
Helps cure:
- Premature wear & bushing failure
- Code P0741
- TCC apply & release concerns
Required
Recommended