Dodge 6.7l Cummins Diesel Transmission 68rfe Heavy Duty Overdrive Clutch Housing Upgrade 2007-2017
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6.7L CUMMINS DIESEL PICK-UP TRUCKS
Clutch Housing Upgrade Kit:
Dodge trucks pulling heavy loads or boosted to 400–600HP are at high risk for overdrive burnup due to the stock transmission’s insufficient clutch capacity and fragile OE clutches.
Even small amounts of heat and extra torque will push the thin (.034″), single-sided clutches over the edge, distorting the clutch pack. The fact is, any distortion of the clutch pack takes the clearance out of spec and makes overdrive clutch burnup inevitable.
Keep hardworking trucks on the road with the Sonnax Smart-Tech® overdrive clutch housing kit 72960-06K. The unique billet aluminum housing holds a physically taller clutch pack and increases OD apply area by 16%. Plus, 2X thicker clutches increase clutch pack steel mass by 28% for unrivaled heat dissipation.
This groundbreaking new kit is the only top-of-the-line upgrade that eliminates clutch problems without relying on valve body/pump modifications or adding the expense of extra components.
Modified housing holds physically larger clutch pack for 20% more clutch capacity
2X Thicker steels and double-sided clutches increase steel mass by 28% for unrivaled heat dissipation
Bolt-on anchor plate eliminates clutch pack flexing and distortion that contribute to heat build-up
16% More OD apply area for firmer, more controlled shifts
Bolt-On Anchor Plate
Anchor Plate Shims (2)
UD/OD Reaction Plate
Friction Clutch Plates (6)
Steel Clutch Plates (5)
Line Pressure Booster Kit:
Chrysler RFE transmissions have a unique, full range pressure transducer and real-time adaptive closed-loop pressure control system. Because of this, it is not possible to raise pressure in an RFE the same way you would in other transmissions. The typical method of installing a stronger pressure regulator spring or larger boost valve will not work because the RFE control module will simply adapt and return pressure to OE specification. An electrical booster option is the only way to raise pressure on an RFE.
Sonnax line pressure booster kit RFE-LB1 is an improved design over a simple resistor circuit. Featuring an integrated chip (IC) circuit and a stronger pressure regulator spring, this new kit delivers 10 psi increase at lower pressure range and 25 psi increase at higher pressure ranges. Only Sonnax line pressure booster kits provide progressive pressure increase which gives you smooth engagements and lower load on the pump at idle, but a greater increase in pressure as the transmission is worked harder.
This kit is ideal for heavy duty and modified vehicles and even stock transmissions when a little extra pressure is desired.
Achieve shorter shifts and increased torque capacity without creating low-speed harshness
Improved clutch holding capacity for increased durability
Progressive pressure increase as driving conditions become more demanding
One kit fits both gas and diesel applications