ZF
ZF6HP28 Transmission
ZF6HP28 Tech Resources Valve Body Layout Vacuum Test Guide View all Transmissions
"A" Drum Rear Bushing 95030-04
Fits 1.967" (49.97mm) dia. shaft journals only.
- Bushing Style: Precision
- Material: Bimetal
- Housing Bore: 2.088"
- Shaft Dia.: 1.967"
- Width: 0.307"
-
Helps cure:
- Bushing wear
- Bushing failure
Bushing Kit 95030-26K
Fits units with input shaft bushing journal diameters of 1.022" (25.97mm) & 1.180" (29.96mm).
- Bushing Style: Precision
- Material: Bimetal
-
Helps cure:
- E Clutch burned
- B Clutch burned
- Gear ratio & solenoid codes
- Bushing wear
- Bushing failure
Input/Output Shaft Bushing 95030-05
Fits units with .669" (16.98mm) dia. shaft journals only.
- Bushing Style: Precision
- Material: Bimetal
- Housing Bore: 0.788"
- Shaft Dia.: 0.669"
- Width: 0.393"
-
Helps cure:
- Bushing wear
- Bushing failure
- Ratio codes
- B Clutch burned
Rear Stator Support Bushing 95030-02
Fits 1.180" (29.96mm) dia. input shaft journal only.
- Bushing Style: Precision
- Material: Steel-backed alloy Bi-metal
- Housing Bore: 1.300"
- Shaft Dia.: 1.180"
- Width: 0.697"
-
Helps cure:
- E Clutch burned
- Gear ratio & solenoid codes
- Bushing wear
- Bushing failure
Rear Stator Support Bushing 95030-01
Fits 1.022" (25.97mm) dia. input shaft journal only.
- Bushing Style: Precision
- Material: Steel-backed alloy
- Width: 0.590"
- Housing Bore: 1.142"
- Shaft Dia.: 1.022"
-
Helps cure:
- E Clutch burned
- Gear ratio & solenoid codes
- Bushing wear
- Bushing failure
Sun Gear Shaft Bushing 95030-06A
Fits units with .991" (25.17mm) shafts only.
- Bushing Style: Precision
- Material: Bimetal
- Housing Bore: 1.103"
- Width: 0.394"
- Shaft Dia.: 0.991"
-
Helps cure:
- B Clutch burned
- Bushing failure
- Bushing wear
- Ratio codes
Sun Gear Shaft Bushing 95030-06
Fits units with .952" (24.17mm) dia. shaft journals only.
- Bushing Style: Precision
- Material: Bimetal
- Housing Bore: 1.063"
- Width: 0.393"
- Shaft Dia.: 0.952"
-
Helps cure:
- Bushing wear
- Bushing failure
- B Clutch burned
- Ratio codes
Accumulator Piston Kit 95740-15K
Also fits Ford CFT23.
-
Helps cure:
- Downshift clunk
- Firm shifts
- Erratic EDS solenoid control and/or EDS codes
Clutch A & E Control Boost Valve Kit 95740-28K
Sevices 2 bores
-
Helps cure:
- 5-4 Flare
- 5-4 Neutral
- No 4-5
- VFS 1/A solenoid control code
- Delayed Forward
- Harsh Forward
Oversized Bypass Clutch Control Valve Kit 95740-73K
ZF valve name: WD-V
-
Helps cure:
- TCC codes
- Excess TCC slip RPM & related codes
- Low converter pressure
- Overheated converter
- Flare shifts
- Harsh shifts
- Rough idle in Reverse
-
Tooling:
- F-95740-TL73
- VB-FIX
Oversized Clutch A & Clutch E Control Valve Kit 95740-66K
This kit will fit in either clutch A or E control bore locations in M-shift versions of ZF6HP21/28/34 (Generation 2) valve bodies only. For E-shift versions, Sonnax offers 95740-72K.
-
Helps cure:
- Coastdown Neutral
- Flare shifts & bind-ups
- Harsh downshifts
- Pressure control out-of-range codes
-
Tooling:
- F-95740-TL66
- VB-FIX
Oversized Clutch A & Clutch E Control Valve Kit 95740-72K
This kit fits either clutch A or E control bore locations in E-shift versions of ZF6HP21/28/34 (Generation 2) valve bodies only. For M-shift versions, Sonnax offers 95740-66K.
-
Helps cure:
- Coastdown Neutral
- Downshift bind-ups
- Harsh downshifts
- Flare shifts
- Pressure control out-of-range codes
-
Tooling:
- F-95740-TL72
- VB-FIX
Oversized Converter Release Regulator Valve Kit 95740-05K
OE valve name: WK-V
-
Helps cure:
- Excess TCC slip RPM & related codes
- Harsh TCC apply & release
- Low TCC release pressure
- Rough idle in Reverse
- Harsh downshifts
- Flare shifts
- Overheated converter
-
Tooling:
- F-95740-TL5
- VB-FIX
Oversized Lubrication Control Valve Kit 95740-71K
ZF valve name: SCHM-V
-
Helps cure:
- Bearing failure
- Bushing failure
- Planetary failure
- Lube failures
- Low converter pressure
- Overheating
- TCC codes & concerns
- Rough idle in Reverse
-
Tooling:
- F-95740-TL71
- VB-FIX
Oversized Position Valve Kit 95740-75K
This kit fits E-shift versions only of the ZF6HP21/28/34 (Generation 2) and ZF6HP19/26/32 (Generation 1) valve bodies with an 053 separator plate.
-
Helps cure:
- Shift concerns
- A Clutch burned
- B Clutch burned
- E Clutch burned
-
Tooling:
- F-95740-TL75
- VB-FIX
Oversized Pressure Regulator Valve Kit 95740-69K
ZF valve name: SYS.DR-V
-
Helps cure:
- Poor shift quality
- Low line pressure
- Flare shifts
- High line pressure
- Harsh shifts
- Burnt converter
- Delayed Reverse
- No Reverse
- TCC slip
-
Tooling:
- F-95740-TL69
- VB-FIX
Oversized Shift Valve 3 Kit 95740-74K
This kit fits M-shift versions of ZF6HP21/28/34 (Generation 2) valve bodies only.
-
Helps cure:
- Harsh Reverse
- Reverse slip
- D1 Brake burned
-
Tooling:
- F-95740-TL74
- VB-FIX
Oversized Solenoid Pressure Regulator Valve Kit 95740-64K
ZF valve name: DR.REO-V
-
Helps cure:
- Delayed engagement
- Flare shifts
- Harsh downshifts
- Neutral shifts
- High line pressure
- Harsh upshifts
- Wrong gear starts
- Gear ratio & solenoid codes
- TCC slip
-
Tooling:
- F-95740-TL17
- VB-FIX
Pressure Regulator Sleeve 95740-29K
-
Helps cure:
- Erratic line pressure
- Broken parts due to excessive line pressure
- High line pressure
- Restricted converter/lube flow
Valve Body Separator Plate 95740-063
Use the ZF6 Valve Body Separator Plate Application Chart to determine which plate is required. The plates are not specific by transmission model, but rather by valve body code and also by the stamped number. OE Valve Body Codes A063 & B063
Valve Body Separator Plate 95740-065
Use the ZF6 Valve Body Separator Plate Application Chart to determine which plate is required. The plates are not specific by transmission model, but rather by valve body code and also by the stamped number. OE Valve Body Codes A065 & B065
Zip Kit® ZF6-GEN2-ZIP
-
Helps cure:
- Broken parts due to excessive line pressure
- Excess heat
- Firm shifts
- Flare shifts & bind-ups
- Delayed engagement
- Harsh engagement
"A" Drum Front Bushing 95030-03
Fits 2.353" (59.77mm) diameter shaft journals only.
- Bushing Style: Precision
- Material: Bimetal
- Width: 0.315"
- Housing Bore: 2.481"
- Shaft Dia.: 2.353"
-
Helps cure:
- Bushing wear
- Bushing failure
"B"/Direct Clutch Bushing 95030-07
Fits units with 1.337" (33.97mm) dia. shaft journals only.
- Material: Bimetal
- Bushing Style: Precision
- Housing Bore: 1.457"
- Shaft Dia.: 1.337"
- Width: 0.465"
-
Helps cure:
- Bushing wear
- Bushing failure
- B Clutch burned
- Direct clutch burned
- Ratio codes
