Product Description
Fits: 46RE / 47RE / 48RE · 1996-ON
TransGo TFRE-PRO Reprogramming Kit for 46RE, 47RE and 48RE transmissions in 1995 and newer Dodge and RAM vehicles: 1996-ON electronic governor units, and 1995 RE valve bodies with a 3/16" checkball in the lower channel casting. This 47-48RE valve body kit is built for extreme duty work trucks and for performance modified trucks with engine power additions.
It targets TCC slip or shudder, 2nd gear band and direct clutch failure, and torque converter drain-back.
Specifications
| Fits | 46RE, 47RE, 48RE |
|---|---|
| Years | 1996-ON (electronic governor units only) |
| Also fits | 1995 RE VBs with a 3/16" check‐ball in lower channel casting |
| Does not fit | 1995-type valve bodies without the 3/16 checkball in lower channel casting |
| Max main line pressure | 185 psi in all forward gears |
How it works
Valve body, servo and internal components are calibrated for higher operating pressures in all gears. With a more aggressive pressure curve and maximum main line set to 185 psi in all forward gears, torque capacity rises by as much as 75% for all clutch elements, including the TCC clutch.
The triple valve body separator plate allows TCC operation in all forward gears, 1st to 4th, on 46-47 RE type valve bodies. Shift timing stays at the OE RPM points, and shifts are short, clean and hold firm as power is rolled on.
A line-to-converter feed system helps the unit run cooler and extends TCC clutch life. The manual valve reduces overnight forward and reverse delayed engagement caused by converter drain-back. A drop-in detent ball bore repair bullet works in the existing worn bore and helps with hard park disengagement. A drop-in TV and throttle reducing (boost) valve with relocated lands restores quick line pressure response in forward and reverse. Valve body modifications increase flow to the direct clutch and band release circuit, reducing 2-3 shift overlap.
The kit can be installed with the transmission in the truck. Internal sealing rings are included for bench overhauls.
Corrects, prevents or reduces: TCC slip or shudder, converter drain-back, soft shifts, 2nd band failure, 3rd clutch failure and 2-3 shift overlap. It improves TCC engagement feel and gives full control of TCC apply in 2nd, 3rd and 4th, with optional 1st gear lock-up.
What's included
- (3) High-temp low shrink sealing rings
- Lower 1-2 accumulator spring
- Front servo washer and optional spring (for oversized aftermarket servo)
- Rear servo optional springs, tapered spring and spacer
- Drill-guide plate, drill bit and drill-stop spacer to modify the valve body casting
- Boost valve bracket
- Drop-in detent repair bullet, spring and Mumbly peg (for easy detent spring and bullet installation)
- USA-made hardened steel manual valve with converter charge in park provision and cherry bomb
- Drop-in USA-made hardened TV valve, boost plug and tapered spring
- Part throttle body transfer plate, pin, spacer and detent limit valve spring
- Drop-in USA-made hardened steel throttle valve and spring
- Triple valve body separator plates
- (4) Longer screws and washers for the hold down plate
- 3-4 quick fill valve springs (white for diesel engines, orange for gas)
- (3) 3-4 accumulator springs, vented accumulator cover, and plug for accumulator housing
- Transfer plate, tapered plug, spring, checkball, limit bushing and O-ring
- Solenoid body plate
- Lower valve body separator plate
- PR valve shim, spring seat and inner spring for line-to-converter feed, plus outer spring for increased pressure
- (3) Drill bits
Notes
Does not fit 1995-type valve bodies without the 3/16 checkball in lower channel casting.
Achieving TCC in the lower gears requires additional electronic control of the TCC solenoid (not furnished).
Does not fit 1995-type valve bodies without the 3/16 checkball in lower channel casting.
