Transmission Reference
Every transmission our kits support, in one place: where each one comes from, what it is rated for, its gear ratios and which Guru kit fits it.
V8 Gen 3 Hemi 8HP from Ram, Durango, Jeep, Charger and Challenger. The 8HP70 and 8HP90 are Gen 1; the 8HP75 and 8HP95 are Gen 2.
| Transmission | Came in | Typical used price |
|---|---|---|
| 8HP70 | 2013–2017 "Classic" Ram | $300–$1,000+ |
| 8HP70 | 2018–2024 "Classic" Ram | $300–$1,000+ |
| 8HP75 | 2019–2024 "New" Ram | $800–$1,500+ |
| 8HP70 | 2013–2024 Durango, Jeep, Charger, Challenger | $600–$1,200+ |
| 8HP90 | 2015–2023 Charger and Challenger Hellcat (car only) | $2,000–$5,000+ |
| 8HP95 | 2021–2024 Ram TRX · 2021–2025 Durango Hellcat · 2018–2021 Jeep Trackhawk | $2,000–$5,000+ |
Read the bellhousing, not the model number. Large, outward starter bubbles = the truck and SUV casting (Ram, Durango, Jeep 8HP70 and 8HP75), with the left-hand bolt boss. Small starter bubbles = the car casting (Charger and Challenger 8HP70, the 8HP90 and the 8HP95), with a different bolt pattern, threaded ports and no bolt boss.
Ram truck
- Truck bellhousing, large starter bubbles
- Ram 1500: smooth-bore cooler ports
- Factory 1350 output flange
- Best availability and price; the easiest install
Durango and Jeep
- Truck bellhousing, large starter bubbles
- CV-style output flange
- Cooler ports: usually threaded
Charger and Challenger
- Car bellhousing, small starter bubbles
- CV-style output flange
- Threaded cooler ports
- No left-hand bolt boss: the park release mounts to the oil pan
8HP95 (TRX · Durango Hellcat · Trackhawk)
- Car bellhousing, small starter bubbles
- 4WD / AWD only: a RWD build needs an adapter to convert the output
- Threaded cooler ports
The larger BMW 8HP from cars with the 4.4L N63 or S63 V8, in rear- or all-wheel drive. Long production runs make the choice confusing, so match the donor's year and model to this table before you buy.
| Transmission | Came in | Typical used price |
|---|---|---|
| 8HP70 · Gen 1 | AWD / RWD, about 2009–2016 N63 4.4L (550, 650, 750, X5, X6) | $200–$1,000+ |
| 8HP75 · Gen 2 | AWD / RWD, about 2017+ N63 4.4L (M550, M650, M750, M850, X5, X6) | $800–$1,500+ |
| 8HP75 · Gen 2 | AWD / RWD, about 2013–2019 S63 4.4L (X5 M, X6 M) | $800–$1,500+ |
| 8HP76 · Gen 3 | AWD only, about 2015+ G-series N63 4.4L (M550, M750, M850, X5, X6) | $1,000–$2,000+ |
Cooler port: 18mm on all of them. Mount bolt is M8 on F-series cars and M6 on G-series. Full cooler fitment chart →
The smaller 8HP45, 8HP50 and 8HP51 behind four- and six-cylinder BMWs don't fit our adapter kits. We still carry accessories for them: cooler adapters, park releases, controllers and service parts.
| Transmission | Came in | Typical used price |
|---|---|---|
| 6HP28 (6HP26Z) | RWD, USA: 2009–2011 BMW 335d | $400–$800+ |
| 6HP28 (6HP26Z) | AWD, USA: 2009–2013 BMW X5 d | $600–$1,000+ |
| 6HP28 (6HP26Z) | Europe and other countries: 330d, 335d, 530d, 535d, X3 d, X5 d, X6 d | Varies widely |
03/2007+ M57N2 diesel units only. GA1 runs the stock BMW Gen 2 TCU with coding and a custom tune, or a US Shift Quick 6. The cooler port is the 14mm face seal. Check with us before you buy so we can confirm it fits.
| Transmission | Came in | Typical used price |
|---|---|---|
| 6R80 | 2015–2017 Mustang 2.3L EcoBoost | $200–$600 |
| 10R80 | Custom order on GA2, runs on the US Shift Quick 10 | Ask us |
Cheap and plentiful, and low mileage is easy to find. One cooler port across the whole 6R / 10R family.
| Transmission | Factory rating | Gear ratios |
|---|---|---|
| Dodge 8HP | ||
| 8HP70 | 516 lb-ft · 700 Nm | 4.714 · 3.143 · 2.106 · 1.667 · 1.285 · 1.000 · 0.839 · 0.667 |
| 8HP75 | 551 lb-ft · 750 Nm | Same as 8HP70 |
| 8HP90 | 664 lb-ft · 900 Nm | Same as 8HP70 |
| 8HP95 | 700 lb-ft · 950 Nm | Same as 8HP70 |
| BMW 8HP | ||
| 8HP70 · Gen 1 | 516 lb-ft · 700 Nm | 4.714 · 3.143 · 2.106 · 1.667 · 1.285 · 1.000 · 0.839 · 0.667 |
| 8HP75 · Gen 2 | 551 lb-ft · 750 Nm | 5.000 · 3.200 · 2.143 · 1.720 · 1.313 · 1.000 · 0.823 · 0.640 |
| 8HP76 · Gen 3 | 560 lb-ft · 760 Nm | 5.500 · 3.520 · 2.200 · 1.720 · 1.317 · 1.000 · 0.826 · 0.640 |
| Six-speed | ||
| 6HP28 | 516 lb-ft · 700 Nm | 4.17 · 2.34 · 1.52 · 1.14 · 0.87 · 0.69 |
| 6R80 | 590 lb-ft · 800 Nm | Same as 6HP28 |
Stock cores commonly handle 600–800 lb-ft. With upgraded clutch packs and billet parts they can be built past 1,000 lb-ft, and these platforms have run seven- and eight-second quarter miles.
Torque converters: run the converter that matches your transmission. Your kit includes the pilot adapter it needs, and BMW and Dodge converters don't interchange. Stock converters can be modified for more stall by Circle D, Florida Torque Converter, TCR of Las Vegas, Precision Hampton and other reputable converter builders. Circle D also builds Dodge 8HP Pro Series converters.
The rest of the BMW, Dodge, Jaguar and Land Rover 8HP family, so you can identify what you have. We don't make adapter kits for these, but we carry accessories for many of them: cooler adapters, park releases, controllers and service parts.
| Transmission | Gen | Drive | Came with |
|---|---|---|---|
| BMW | |||
| 8HP45 | 1 | RWD · AWD | N20 and N55, F-series |
| 8HP45 | 1 | RWD | N13, F-series |
| 8HP45 | 1 | RWD · AWD | N47 and B47 diesel · early N57 diesel (2010–2012), F-series |
| 8HP50 | 2 | RWD · AWD | B47 · B48 · B58, F-series |
| 8HP50 | 2 | RWD · AWD | B48 · B58, early G-series (2015–2019) |
| 8HP51 | 3 | RWD · AWD | B47 · B58, G-series |
| 8HP70 | 1 | RWD · AWD | N57 diesel, F-series (incl. X5 / X6 xDrive40d) |
| 8HP75 | 2 | RWD · AWD | N57 diesel (F-series X5 / X6 AWD) · B57 diesel, G-series |
| 8HP76 | 3 | RWD · AWD | B57 diesel and S58, G-series |
| 8HP90 | 1 | RWD | N74 V12, F-series |
| 8HP95 | 2 | AWD | N74 V12, G-series |
| Dodge · Ram · Jeep | |||
| 845RE | 1 | RWD · AWD | 3.6L Pentastar V6 |
| 850RE | 2 | RWD · AWD | 3.6L Pentastar V6 |
| 8HP70 · 8HP75 | 1 · 2 | RWD · AWD | Ram 1500 3.0L EcoDiesel |
| Jaguar · Land Rover | |||
| 8HP45 | 1 | RWD | Jaguar XF (X250) 2.0L |
| 8HP70 | 1 | RWD · AWD | Jaguar F-Type, XF and XJ 3.0L V6 and 5.0L V8 · Range Rover 5.0L V8 · Range Rover Sport 3.0L V6 and 5.0L V8 |
| 8HP70 | 1 | AWD | Jaguar F-Pace 3.0L V6 and SVR 5.0L V8, 2017–2020 · Discovery 5 3.0L diesel |
| 8HP70 | 1 | RWD | Jaguar XF 2.2L diesel (6-bolt converter) |
| 8HP75 | 2 | AWD | Jaguar F-Pace, 2020+ |
| 8P75PH (hybrid) | 3 | AWD | Jaguar F-Pace and Land Rover plug-in hybrids. Not recommended for swaps |
The N47, B48, N57, B58, B57 and S58 share one bellhousing pattern. The Pentastar and EcoDiesel units don't use the Hemi bellhousing. Hybrid units (codes like 8P75PH) replace the torque converter with a clutch and an electric motor, so we don't recommend them for swaps. Jaguar and Land Rover 8HP cooler ports take the Jaguar · Land Rover 17mm fitting. Cooler adapter fitment →
Found a unit? Our sourcing guide walks you through vetting it before you buy.