45RFE Shift Kit 1999-2009, new and ready to install. Fits the 45RFE. Ships fast from the USA.
A 1999-2009 Ram 1500, Dakota, Durango, Grand Cherokee, Commander or Liberty with a 45RFE or 545RFE that loses drive for a moment after Reverse, flares on the upshifts, or keeps setting P1776 or P0871 usually has a tired valve body, and the most common wear spot is the solenoid switch valve bore. This listing is a new valve body repair kit for those early 7-check-ball units, kit number CR-2762-RKM. The store title calls it a shift kit; in practice it is a hard-parts rebuild of the valve body you already have: a billet channel plate, a blocked separator plate with gaskets, a drop-in solenoid switch valve with plugs, billet accumulator pistons with new seals and a support plate, and 35 heavy-duty valve body bolts. No reaming is required.
The 45RFE family shifts clutch-to-clutch with no bands, so the valve body has to hand each clutch off with no overlap to spare. The solenoid switch valve sends the low/reverse solenoid's oil to the low/reverse clutch in first gear and to the converter clutch in the higher gears, and the plugs at the end of its bore help feed the 2nd and Overdrive circuits. As that aluminum bore wears, the valve and plugs leak or stick, which is why one worn bore can cause lockup complaints, failsafe and burned clutches all at once. The drop-in switch valve and plugs restore that circuit without machining the casting. The billet channel plate and blocked separator plate are a matched pair and must be installed together; they replace the cast channel plate and the stock separator to change how oil is routed. The billet pistons, heavy-duty support plate and new seals replace the stock accumulator pistons, whose seals harden and leak with age.
Read the codes and look at the fluid first. ATF+4 that is black and smells burnt, or a pan full of friction material, means the clutches are already damaged and this kit belongs inside a full rebuild rather than a pan-off repair. A P1776 (switch valve latched in the low/reverse position) or P1775 points straight at the switch valve. With the valve body on the bench, a vacuum test of the switch valve bore shows whether the casting leaks. Our 45RFE / 545RFE valve body problems and testing guide walks through those checks, and the 45RFE harsh shift causes guide covers learned values and line pressure faults that can feel like a hardware problem.
The kit is listed for 1999-2009 45RFE and 545RFE units, and it is described as fitting all 7-check-ball applications up to 2009. Two checks matter more than the model year. First, count the check balls when the valve body is out: seven means this kit. Second, the drop-in valve is the .420 inch large-spool switch valve design. Sonnax notes the 45RFE group moved to a .453 inch spool around the 2010 model year, so a later valve body, or an earlier truck that was fitted with a later replacement, may not match. Measure the old valve rather than trusting the year. Send us your year and VIN if you want a second check. Every part we carry for this family is on the 45RFE parts page.
| Fits | 45RFE 1999-2009 |
| Part type | Shift Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is a repair kit for your existing 45RFE or 545RFE valve body. It replaces the channel plate, separator plate, solenoid switch valve and plugs, and accumulator pistons, but you reuse your own valve body casting and solenoid pack.
No. The kit is described as no reaming required; the solenoid switch valve and plugs are drop-in parts for the original .420 inch switch valve bore.
No. It is for 7-check-ball valve bodies up to 2009. The switch valve design in this family changed around 2010, so later units need different parts. Send us your VIN if you are not sure.
No. The channel plate and the blocked separator plate are designed as a pair and must be installed together with the supplied gaskets.
No. It contains the channel plate, separator plate with gaskets, switch valve and plugs, billet pistons with seals and support plate, and 35 valve body bolts. Buy a filter and pan gasket separately.
Refill with ATF+4, set the level hot, and run the Quick Learn. Chrysler's entry conditions are brakes applied, engine over 500 rpm, throttle under 3 degrees and fluid between 60 and 200 F.
