Transmission Parts
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Required
Recommended
Required
Recommended
Required
Recommended
Required
Recommended
845RE, ZF8HP45, ZF8HP50, ZF8HP55, ZF8HP70, ZF8HP75
P1 Planet Bushing 35030-03
In ZF8HP70/75 units, fits four-wheel drive only.
- Material: Steel-backed alloy
- Bushing Style: Precision
- Housing Bore: 1.812"
- Shaft Dia.: 1.692"
- Width: 0.394"
-
Helps cure:
- Bushing wear
- Bushing failure
- Clutch failure
- Harsh shifts
- Gear ratio & solenoid codes
Required
Recommended
ZF8HP70, ZF8HP75
P1 Planet Bushing 35030-03A
Fits two-wheel drive units only.
- Material: Steel-backed alloy
- Bushing Style: Precision
- Housing Bore: 1.811"
- Shaft Dia.: 1.692"
- Width: 0.394"
-
Helps cure:
- Bushing wear
- Bushing failure
- Clutch failure
- Harsh shifts
- Gear ratio & solenoid codes
Required
Recommended
Required
Recommended
845RE, ZF8HP45, ZF8HP50, ZF8HP55, ZF8HP70, ZF8HP75
P4 Sun Gear & Planet Carrier Bushing 35030-05
Fits rear of P4 sun gear and P4 planet carrier locations.
- Material: Steel-backed alloy
- Bushing Style: Precision
- Housing Bore: 0.993"
- Shaft Dia.: 0.873"
- Width: 0.394"
-
Helps cure:
- Bushing wear
- Bushing failure
- Clutch failure
- Harsh shifts
- Gear ratio & solenoid codes
Required
Recommended
6L80
Heavy Duty 4-5-6 Clutch Hub & Intermediate Shaft 104680-36
For use with OE steels and 36-tooth frictions.
- Material: 300M
- Tooth Count: 36-T OE hub spline
Required
Recommended
450-43LE
Oversized Pressure Regulator & Boost Valve Kit 94987-11K
This kit fits '98-later models: Isuzu NPR, GMC Forward Tiltmaster, Chevrolet Forward, Nissan UD and Mitsubishi Fuso Trucks.
-
Tooling:
- F-94987-TL11
- VB-FIX
-
Helps cure:
- Delayed engagement
- Soft shifts
- Low line pressure
- High line pressure
- Harsh shifts
- No lockup
Required
Recommended
6T70 (Gen. 1), 6T70 (Gen. 2), 6T75 (Gen. 1), 6T75 (Gen. 2), 6T80 (Gen. 2)
Jig Plate 124740-JP40
Jig plate for 124740-TL40. Fits Gen. 1 and Gen. 2 units.
Required
Recommended
6T70 (Gen. 2), 6T75 (Gen. 2), 6T80 (Gen. 2)
Oversized Actuator Feed Accumulator Piston Kit 124740-65K
-
Tooling:
- 124740-TL40
-
Helps cure:
- Harsh shifts
- Soft shifts
- Solenoid performance codes
Required
Recommended
Required
Recommended
6T70 (Gen. 2), 6T75 (Gen. 2), 6T80 (Gen. 2)
Oversized 2-6 Clutch Regulator Valve Kit 124740-66K
-
Tooling:
- F-124740-TL66
-
Helps cure:
- 1-2 Flare
- 5-6 Flare
- 2nd Slip
- 6th Slip
- No 2nd
- No 6th
- Ratio codes
- 2-6 Clutch burned
- Erratic shift timing
Required
Recommended
6T40 (Gen. 1), 6T40 (Gen. 2), 6T45 (Gen. 1), 6T45 (Gen. 2), 6T50 (Gen. 1), 6T50 (Gen. 2)
Bearing Kit SBK-G40
Does not fit Gen. 3 units.
-
Helps cure:
- Bearing noise
- Bearing failure