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Updates Details:

  • Updated Sonnax B1, B2, K1, K2, K3 Accumulator Piston Kit
    Wear at the accumulator bores in these units is very common. The B1, B2, K1, K2, and K3 accumulator pistons used during apply of the clutches to ease the engagement of the apply component. Wear at the valve body bore allows apply oil to exhaust, resulting in harsh or delayed apply, burned clutches, or slipping and flares in the associated gears. The Sonnax B1, B2, K1, K2, K3 accumulator piston kit incorporates an O-ring for positive sealing, even in worn bores.

 

  • Updated Sonnax B1 & B2 Apply Control Plunger Valve Kit

A worn B1 or B2 apply control plunger valve sleeve can cause shift flares, delayed or harsh engagements, low line pressure and burnt B1 and B2 clutches. Line pressure is routed to the B1 and B2 plunger valve to aid in proper apply control of the B1 and B2 clutches. If the sleeve is worn at the B1 location, line pressure exhausts which will result in 1-2 and 5-6 shift flares, low line pressure and a burned B1 clutch. If the sleeve is worn at the B2 location, a cross-leak between line pressure and Reverse pressure is created, which can result in delayed or harsh Forward and Reverse engagements and a burned B2 clutch. The Sonnax B1/B2 apply control plunger valve kit 122740-01K restores hydraulic control at either location to address these issues. These Sonnax Parts feature a Hardcoat anodized aluminum plunger valve combats premature wear, Upgraded sleeve material is highly wear-resistant to increase life and the Sleeve/plunger valve engagement lengthened to provide better stability and durability.

 

  • Updated Sonnax K1 Apply Boost Valve Kit

The K1 apply boost valve assembly aids in positioning the inboard K1 apply control valve to apply the K1 clutch in 1st through 4th Gears. As the sleeve oscillates from vibrational forces and the valve strokes over time, wear on these parts occurs, resulting in the loss of proper hydraulic control of the clutch pack. This can cause delayed forward shifts, forward slip and coast down clunk. The Sonnax K1 apply boost valve kit 122740-29K will restore the normal shift operation by re-establishing the proper hydraulic integrity of the K1 circuit. These Sonnax Parts feature a Hardcoat anodized aluminum valve combats premature wear, and the Sleeve is manufactured from highly wear-resistant aluminum.

 

  • Updated Sonnax Lockup Boost Valve Kit

The lockup boost valve and sleeve assembly are prone to wear due to oscillational and vibrational forces and the valve strokes over time, the wear that occurs prevents proper hydraulic control of the lockup control valve, resulting in a multitude of TCC complaints. Some common symptoms of these side-effects can be TCC slip, TCC slip codes and TCC apply and release concerns. Installing Sonnax lockup boost valve kit 122740-30K will restore normal TCC operations by re-establishing the proper hydraulic integrity of the Lockup control circuit. These Sonnax Parts feature a Hardcoat anodized aluminum valve combats premature wear, and the Sleeve is manufactured from highly wear-resistant aluminum.

 

  • Updated Sonnax Oversized Cooler, Main Converter & Converter Relief Valve Kit

These units often suffer overheating and converter slip/code issues caused by excess wear in the cooler, main converter pressure and converter relief bores. This wear allows fluid loss, which can lead to poor cooling, low cooler feed, low converter charge, TCC slip and TCC slip codes. When working properly, these valves dampen/absorb pressure spikes to ensure proper apply and release of the TCC. Reconditioning the bores and installing Sonnax oversized cooler, main converter pressure and converter relief valve kit 122740-10K re-establishes correct clearances for proper valve function. These Sonnax Parts feature steel valves combat premature wear and Annular grooves that help center the valve in the bore to reduce side-load wear.

 

  • Updated Sonnax Oversized Pressure Regulator Valve Kit

The pressure regulator valve and sleeve assembly are prone to wear due to continual oscillational and valve strokes wears the valve as well as the bore over time. If severe wear occurs the pressure regulator valve won’t stroke properly to regulate line pressure. This can result in high as well as low line pressure, which can lead to various shift complaints and burnt clutches. Sonnax oversized pressure regulator valve kit 122740-07K has significant improvements over the OE design to prevent future wear. With installation of this kit, the valve body bore can be refurbished and hydraulic integrity restored. These Sonnax Parts feature a Hardcoat anodized aluminum plunger valve combats premature wear, added spring pocket increases contact area and reduces wear and some of the valve lands are lengthened to provide better stability and durability.

 

  • Updated Sonnax Oversized SLT Piston Kit

Significant bore wear at the SLT accumulator bore is common and allows SLT pressure to exhaust and may result in unstable line pressure, low pressure, delayed shifts and various flared and harsh shifts. Reaming the bore and installing Sonnax oversized SLT accumulator piston kit 122740-17K will restore proper clearances and hydraulic function.

Year Make Model Engine
Year Make Model Engine
2014 Dodge Ram 3500 6.4L
2014 Dodge Ram 4500 6.4L
2014 Dodge Ram 5500 6.4L
2015 Dodge Ram 3500 6.4L
2015 Dodge Ram 4500 6.4L
2015 Dodge Ram 5500 6.4L
2016 Dodge Ram 3500 6.4L
2016 Dodge Ram 4500 6.4L
2016 Dodge Ram 5500 6.4L
2017 Dodge Ram 3500 6.4L
2017 Dodge Ram 4500 6.4L
2017 Dodge Ram 5500 6.4L
2018 Dodge Ram 3500 6.4L
2018 Dodge Ram 4500 6.4L
2018 Dodge Ram 5500 6.4L

This transmission comes with a 1 Year 36,000 Mile Warranty with the purchase of a new torque converter. We offer an extended Warranty 2 Year 50,000 Mile Warranty, or a 3 Year 100,000 Mile Warranty for an additional charge.

Any and all shipping costs, including freight damage claims. Rental cars, loss of work, any labor costs, removal/reinstall fees, towing costs, inspection fees and any other incidental costs or damages which may be associated with product failure. Any product that has been physically altered, improperly installed or maintained. Any product used in an improper application, abused or not used in connection with the proper parts.

Buyer is required to pay the core deposit up front. Core must NOT have any internal hard part, or case damage, otherwise there will be additional charges deducted from your core deposit for the damaged hard part(s) or case. Initial shipping cost only covers one-way shipping. Return shipping cost for the transmission core is not included. Return shipping cost is deducted from your core deposit refund, after returned core passes inspection.

Majority of units are in stock, in the unlikely case we do not have one in stock, they are quickly available, in most cases, as little as one business day. There are many different variations of this transmission model available so please make sure we get a VIN number when or after you place the order.

AS66RC 2014-2018 4X4 TRANSMISSION 6.4L

Our Process:
All of our transmissions are fully remanufactured and are held to the highest and strictest industry standards. What this means to you is the fact you are getting a quality product that meets or exceeds the OEM standards, not just a part that is taken apart and “patched”. We ensure that all the current updates are performed, during reassembly each unit is ran through tests to ensure correct assembly and quality

Our Process:All of our transmissions are fully remanufactured and are held to the highest and strictest industry standards. What this means to you is the fact you are getting a quality product that meets or exceeds the OEM standards, not just a part that is taken apart and “patched”. We ensure that all the current updates are performed, during reassembly each unit is ran through tests to ensure correct assembly and quality.
AS66RC BUILD PARTS LIST

  • Master Kit (Clutches, Steels, MOPAR Overhaul Kit, Bushings, Bonded Pistons)
  • MOPAR Brand Transmission Filter
  • New Updated K2 Clutch Hub
  • Updated Sonnax B1, B2, K1, K2, K3 Accumulator Piston Kit
  • Updated Sonnax B1 & B2 Apply Control Plunger Valve Kit
  • Updated Sonnax K1 Apply Boost Valve Kit
  • Updated Sonnax Lockup Boost Valve Kit
  • Updated Sonnax Oversized Cooler, Main Converter & Converter Relief Valve Kit
  • Updated Sonnax Oversized Pressure Regulator Valve Kit
  • Updated Sonnax Oversized SLT Piston Kit

 

 

 

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(815) 935-2356
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Christian Davis
I purchased a 48RE Transmission from ShiftRite! It arrived quickly, installed it, and I was back on the road! So far all is well! The communication was outstanding and the people at ShiftRite really take care of their customers! Thanks!
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Lisa Sewell
As a first time customer, I was extremely pleased with how efficient and professional this company is. I had the pleasure of dealing with Molly who was very knowledgeable and pleasant. Molly was timely with returning calls/text messages. She is a great asset to the company. I would highly recommend their services if needed. Lisa Sewell
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John Parks
If you have any doubt about purchasing your transmission from Shiftrite put it to the side . I can promise you they stand on their work because it’s top shelf and the small chance they do make a mistake they will rectify it I assure you . In my case the mistake was on my end Bret still helped me resolve the problem . Thanks again Bret and the team at ShiftRite . I appreciate it !
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Raymond Noblin
The owner was very involved with my 4l80e swap. Had an internal harness connector o-ring leak they helped me resolve to prevent fluid from leaching up into the main input harness. After that the trans performed flawlessly. Great communications and shipping crate professionally done. I will use them again I am sure. I would proudly wear a shirt or hat with their logo. Thanks team.
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Ginger Duke
Needed a transmission for my dodge 5500. They shipped it quickly to my mechanic then let me bring the core in since I was going to be in the area, so I didn’t have to spend a bunch on shipping to get my core deposit back! Molly is the best to deal with! Can’t go wrong with them!
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