8hp75 Transmission

The JT Hemi kit is here! This kit is modified to switch out the factory 8 speed transmission and upgrade it with an 8HP75 transmission for a higher torque rating! Flashed 8HP75 is included with this kit. This kit will only work on JTs with the 8 Speed automatic transmission. Please contact us for info on the manual transmission kit. Install kit now comes with an upgraded heavy duty radiator for increased cooling capability!

8hp75 Transmission

  • Custom wiring harness

  • Bolt-in motor mounts

  • Machined transfer case adapter

  • Header back exhaust system with SRT headers

  • Custom intake system

  • Dakota Customs special install parts

  • Professionally tuned PCM

  • JL Hemi Tazer calibration tool included

  • More info and pictures coming soon

The PCM from the converted Jeep will be needed to complete the engine programming. A ship here ship back system will be used to make this an easy step.

One transmission - many possibilities For the 8-speed automatic transmission, ZF set out to design and develop an entirely new gear set concept. The result is a revolution in transmission design: a transmission concept with 4 gearsets which requires only 5 shift elements - of which only two are open in any given gear. The ZF 8HP75 transmission transfers power from the engine to the road through 4 planetary gearsets and 5 multi-plate clutch pack. To increase both operating and fuel efficiency, the ZF 8HP75 transmission is designed to only keep two of its five clutches (3 rotating and 2 brake) open at any given time. Transmission Pan for 8HP45 / 845RE / 8HP50 / 850RE / 8HP70 / 8HP75 - Heavy-Duty Cast Aluminum – Standard Fluid Volume. There is no need to discard the filter pan assembly every time you service your ZF 8-speed transmission. PPE has engineered an exclusive removable and replaceable fluid filter and permanent replacement pan made from cast aluminum. This eliminates the high cost of regularly.

Gladiators have different engine frame mounts than the 3.6L Wrangler and require welding in new frame mounts.

*These contain conversion parts only. OEM parts and engines must be purchased separately.

This page last updated: April 7, 2016

8HP-75 8-speed transmission
New 2nd generation ZF Transmission
Availability: 2017 Grand Cherokee models with 3.0L CRD

8hp75 Transmission Jeep

8hp70 Vs 8hp75 Transmission

New 2nd generation ZF 8-speed Transmission
  • New gear set design: four planetary gear sets and only five shift elements minimize the drag loss and increase the transmission efficiency
  • Optional hydraulic impulse oil storage (HIS) opens up the possibility of the start-stop function and increases the fuel savings potential
  • Integrated transmission control unit with extremely quick response time
  • Basic transmission can be combined with multiple power take-up elements including the torque converter, the hybrid drive, and the integrated power take-up element
  • Full hybrid compatibility: on the basis of the parallel hybrid concept, mild, full and plug-in hybrid systems can be implemented with the basic transmission of the 8-speed automatic transmission
  • The transmission is compatible with the following all-wheel-drive concepts: All-whell drive center differential integrated, integrated all-wheel drive system (IAS©), hang-on all-wheel-drive
  • Input torque 750 newton meter (553 lb-ft.)
  • Multidisk separation of brakes
  • Optimized cooling: less cooling oil for low system pressures, more cooling oil for high system pressures
  • Automatic idle shift system at vehicle standstill and engaged service break (stand-by control)

One transmission - many possibilities

For the 8-speed automatic transmission, ZF set out to design and develop an entirely new gear set concept. The result is a revolution in transmission design: a transmission concept with 4 gearsets which requires only 5 shift elements - of which only two are open in any given gear. The 8HP also requires no more than 3 multi-disk clutches and 2 brakes, which allows it to achieve a greater degree of efficiency than other concepts. As a result of the fact that only 2 shift elements are open per gear, drag losses in the transmission are sustainably reduced. This effect is supported by the use of a new parallel-axis vane-type oil pump. 4 A torque range from 300 to 1000 newton meter makes the 8HP the perfect partner for all rear-wheel-drive and all-wheel-drive designs. From the lower midsize segment to sporty luxury cars, and in every type of SUV and offroad vehicle - its revolutionary design is always an efficient and economical solution. Although the 8HP features 2 more speeds than the extremely successful 6HP, the dimensions have remained unchanged and the weight was even reduced by 3% to 87 kg (transmission modular system 8HP70) including oil. At the same time, the total transmission ratio spread of 7.0 ensures that the engine is always in its optimum operating range. This translates into improved acceleration and reduced fuel consumption.

Based on a really successful product, it combines dynamics and comfort with improved efficiency - also with regard to the costs. And it is ideally equipped for even stricter fuel consumption and CO2 emission regulations. In the premium and mid-size car range, the optimized 8HP product family enables the average fuel consumption to be cut by another 3%. CO2 emissions decrease to the same extent. These potentials can also be completely transferred to hybrid drives. Incidentally, additional savings potential by a further optimized startstop function is not yet included here. To achieve these innovations, ZF engineers have optimized some details. Thus, the reduction of drag torques and engine speeds further reduced the already very low power losses. Essential success aspects are the higher transmission ratio spread and the reduction of system pressures in many areas. Another factor is the multidisk separation of the brakes. Furthermore, advanced torsional vibration dampers enable a faster bypassing of the hydrodynamic power transmission and therefore further reduction in speed. Thus, the new 8HP is perfectly prepared for use with the new engines (3-8 cylinders) which will determine the trend of the years-to-come.

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8HP75 Data Sheet (PDF)


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