Nizpro were the first company in the world to introduce a heavy duty billet steel input shaft for the ZF 6HP26 range of 6 speed automatic transmissions. With over four years of design and testing behind us, this direct-fit input shaft stops the common shaft failures of the standard production unit. ZF S6-40 General Specifications: Gear ratios - 1st-2.68, 2nd-1.80, 3rd-1.29, 4th-1.0, 5th-0.75, 6th-0.50, Reverse-2.50 Description - 6 Speed 95 mm Fully Synchronized Weight (w/shifter) 145 lbs Lube Capacity 2.2 Quarts (engine type oil P/N 1052931 or BMW P/N 0) Reverse Lock Out Mechanism. Nizpro are the only companyproducing ZF transmissions handling over 1100hp@engine and many 9-second customer cars with bullet proof reliability. If you have a Ford / FPV with a 6 Speed Automatic (6HP26) don’t hesitate to contact us for your tuning and upgrade needs.
Ford Zf 5 Speed
The ZF S6-650 is a 6-speed manual transmission manufactured by ZF Friedrichshafen AG. It is designed for longitudinal engine applications, and is rated to handle up to 705 newton metres (520 lbf⋅ft) of torque.
General Motors used the S6 as RPO ML6.
Gear ratios:
| 1 | 2 | 3 | 4 | 5 | 6 | R |
|---|---|---|---|---|---|---|
| 5.79 | 3.31 | 2.10 | 1.31 | 1.00 | 0.72 | 5.23 |
Zf 6 Speed Auto Tunes
Applications[edit]
Zf 6 Speed Transmission Problems
- 2001–2006 Chevrolet Silverado 2500HD and 3500
- 2001–2006 GMC Sierra 2500HD and 3500
- 1999–2010 Ford Ford Super Duty F-250, F-350, F-450 & F-550 (with diesel engines)
- 2002–2010 Ford Ford Super Duty F-250, F-350, F-450 & F-550 (with gas engines)
Significance[edit]
ZF introduced the S6-650 in 1998 on the Ford Super Duty. GM started using the ZF S6-650 in 2001 with some alterations, making this transmission different from the Ford version.[citation needed]
The S6-650 will likely be the last manual transmissionGM and Ford will use in their heavy pick ups, due to advancements in automatic transmission technology and low consumer demand for manual transmissions.
Construction[edit]
Zf 6 Speed Manual Transmission
The ZF S6-650 – Heavy Duty 6 speed manual transmission has an aluminium alloy main gear case and tail housing with the bell housing integral to the case. It is built in two-wheel drive and four-wheel drive versions. The model used in the Ford trucks has an internal oil pump to circulate and cool the lubricant, which is uncommon in manual transmissions. The GM versions are not equipped with an oil pump. All gears are synchronized. There is a dual cone synchronizer on 2nd and 3rd gears with an input torque rating of 520 ft-lb.