TRANSGO SK 45RFE-A Shift Kit Instructions

TRANSGO SK 45RFE-A Shift Kit

Fits: 1999-2017 45RFE, 545RFE, 65RFE, 66RFE & 68RFE Dodge, Ram & Jeep Gas & Diesel

Prevents-Corrects-Reduces

Rough Lockup, Converter drain back. Allows use of Pump Cover with worn TC limit bore. Includes Tough Accumulator Cover Plate & Replacement Springs for Pump.

Step 1

• Remove TC Limit and ID which Type Valve the pump has:
• If the pump has a TYPE 1 Valve, use NEW Type 1 Bushing!
• If the pump has a TYPE 2 Valve, use NEW Type 2 Bushing!

Step 2

• Discard the original TC Limit Valve, Spring & Retainer.
• Install new Bushing, GOLD ball, ORANGE Spring & V-Notch
• Retainer. It is correctly installed when the bushing is inserted far enough to install the retainer. Bushing does not go any deeper.
• Regardless of the amount of BORE WEAR, this system WORKS perfectly! Install it and forget it!

Step 3
Install a new slotted Retainer and three PLAIN Springs into the open end of the Accum Piston. No need to disassemble the inner retainer or inner valve assy.

Tech Tip
Over-night drain-back can be caused by this ball-check air bleed leaking. (Visible with the pan removed – Not found on all pumps.) OK to plug if leaking. No threads in the hole? No ball check was used. Do not swap pump plates!

ALL 45/545/65RFE & 2012-13 66RFE Input Drum

Heavy Duty Underdrive Snap Ring
Replaces tapered ring that breaks and pops out. Install the Snap Ring on top of the underdrive pressure plate. Using a screwdriver, firmly seat Snap Ring into a groove in six places. Don’t worry, It’s supposed to be a TIGHT fit. Heads Up! 45/545/65RFE & 2012-2013 66RFE OD Clutches & Steels are thicker than UD and Rev. Pay attention!

• UD FRICTION .075 UD STEEL .068
• OD FRICTION .090 OD STEEL .087
• REV FRICTION .075 REV STEEL .068
• 2007up UD/OD Press Plate has approx.
• 065 offset on OD side p/n
• 68009902AC 1999-06 UD/OD
• Press Plate has approx .021 offset on
• OD side p/n 68009108A

Drum ID: Measure from top of the drum to top of .061 flat snap ring: 2007up = 1.960 / 1999-06 = 1.907

Note: 2012-13 66RFE Trans’s may have been repaired with 2014up Input drum parts, see pg3. 1999-06 Trans may have been repaired with 2007up Input drums. Measure drum to ID.

Input Drum–Cutaway Side View

OD Clearance adjustment is not necessary WITH correct parts usage. (Uses Thickest OD/Rev Plate p/n 68323984AA 9.62-9.85mm) Rev Press Plate Snap Ring Selective to adjust Rev Clearance. UD Clearance adjustment was not necessary WITH correct parts usage. (It should already be within specs.)

2014up 66RFE Input Drum

Heavy Duty Underdrive Snap Ring
Replaces tapered ring that breaks and pops out. Install the Snap Ring on top of the underdrive pressure plate. Using a screwdriver, firmly seat Snap Ring into a groove in six places. Don’t worry, It’s supposed to be a TIGHT fit. Heads Up! 2014up 66RFE OD Clutches are thinner & the Steels are thicker than UD and Rev. Pay attention! The UD/OD & OD/Rev Pressure plates were also changed at the same time from the previous 2012 & 2013 models.

Input Drum–Cutaway Side View

Working on 2012-13 66RFE?
P/N 68321415AB is a service package that if used completely will update 2012-13 66RFE to 2014up specs. Approx $185.00 Comes with UD, OD, Rev clutches, and steels. UD/OD pressure plate, OD/Rev pressure plate, Input drum seals, UD apply piston, UD balance piston, tapered snap ring & 3 selective Rev Clutch Snap rings. This package will service all 66RFE’s 2012 & up.

Clutch Clearances
UD -.030 – .063, OD -.030 – .063, Rev -.023 – .058OD Clearance adjustment not necessary WITH correct parts usage. (Uses thinnest OD/Rev Plate p/n 52119929AB 8.79-9.01mm) Rev Press Plate Snap Ring Selective to adjust Rev Clearance. UD Clearance adjustment is not necessary WITH correct parts usage. (It should already be within specs.)

68RFE: Input drums use one-sided clutches UD & OD

• UD & OD, clutch friction surfaces face UP!
• UD clutch has ten .058 thick frictions. OD clutch has twelve .050 thick frictions.
• The reverse clutch has 2 double-sided frictions & 1 steel.
• UD stack- Start with a .058 friction plate with external lugs, and alternate with internal lug plates. The stack will end with a friction plate with internal lugs. Install thin snap-ring,
• UD/OD Pressure plate then replace beveled snap-ring with new .091 to .094 flat snap-ring.
• OD stack- Start with a .050 friction plate with external lugs, alternate with internal lug plates. The stack will end with a friction plate with internal lugs. Install waved snap-ring, OD/Rev Pressure Plate *If the plate has a step, (ID #’s 1 & 2) the stepped side faces down, then install flat snap-ring.
• Rev stack- Start with double-sided friction, steel, double-sided friction, Pressure plate, and flat snap-ring.
• OD/Rev Pressure Plate P/N’s
• 52119929AB 8.79-9.01mm 52119930AB 9.22-9.45mm 68323984AA 9.62-9.85mm
• OD/Rev Pressure Plate:
• *If the plate has a step, the stepped side faces down!
• Plate ID: “1”, “2” & no code. No code is flat on both sides.
• Spare accumulator
• springs furnished, can be used in all accumulators on 45/545RFE.

Aluminum Pistons: Install wire expander and 45/545/65&66RFE new ring into inner ring groove as shown. Valve Body’s

Tech Tip: Solenoid Switch Valve bore wear can cause a variety of codes and failures. See page 8.

68RFE Valve Body
Was OD Clutch Damaged? Vehicle has High mileage? See pages 7 & 8 first! Aluminum Pistons: Install wire expander and new ring into inner ring groove as shown. Plastic Pistons: Skip this step.

Spare accumulator springs furnished, can be used in all accumulators except 2nd & OD on 68RFE.

68RFE Repeated OD Clutch Failure due to Valvebody Erosion Crossleaks

Pressure, time & heat induce the flexing of the channel walls. This movement scrubs the separator plate leaving a mark and erodes the aluminum cast-ing causing cross leaks.
Often seen in high mileage 68RFE types of diesel due to higher pressure and heat. Repeated OD Clutch Failure is common. This condition is not easily solved by surfacing the VB. It is recommended for long-term durability to replace the VB. 45RFE VBs have been used to replace 68RFE VBs. Just swap over the accumulator springs, Sol Pack & Range Sensor Plate.

Swapping out a valve body? Move these 3 Items from the original valve body over to the replacement VB!

Clutch Clearances and Volumes 45RFE, 545RFE & 65RFE

Clutch Clearances and Volumes 66RFE

Clutch Clearances and Volumes 68RFE

Documents / Resources

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SK 45RFE-A Shift Kit, SK 45RFE-A, Shift Kit
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