Sonnax introduces S4 clutch control valve kit
Sonnax has introduced a new drop-in S4 clutch control valve kit for GM 8L45 and 8L90 transmissions. Sonnax says users can replace worn parts with this kit (part no. 154740-24K) to restore proper hydraulic control and renew clutch apply fluid pressure performance. The company notes that the Sonnax valve in this kit cannot be used
The multi-functional Clutch 1 in Nissan’s CVT, part 1
Nissan’s Hybrid RE0F02/3H CVT transmission by Jatco (JF019E) can be found in vehicles such as the Nissan Rogue and Pathfinder as well as the Infiniti QX60. It has its traction motor located where the torque converter would normally be (as you can see in Figures 1, at the top of the page, and 2, below).
Sonnax adds new clutch regulator valve kit for Ford 6F35
Sonnax has introduced a new oversized low reverse/overdrive (4-5-6) clutch regulator valve kit (part no. 144740-43K) for Ford 6F35 transmissions, generations 1 and 2. Sonnax says that users can restore the correct valve/bore clearances and clutch control in these transmissions by reconditioning the bore and installing this kit. This kit includes a new spring that
Raybestos adds new clutches for GM 8L45
Raybestos Powertrain has introduced two new clutch packs for the GM 8L45. The first is a GPZ friction clutch pack (part no. RGPZ-285) for model years 2016 and on of the 8L45. This GPZ complete unit Clutch Pack module features (4) C1 Clutch, (3) C2 Clutch, (5) C3 Clutch, (4) C4 Clutch, (4) C5 Clutch
6F35: A classic bolt intrusion
I remember the first time I took a phone call from a shop that had a GM 4L60-E with a complaint that it felt like it was bound up in both reverse and drive. I you got into the throttle a bit, it would move but with a terrible noise. After the Park Pawl was
How to service Volkswagen, Audi dual clutch transmissions
You may have heard the term “DSG” or “DCT” being used when referring to Volkswagen/Audi transmissions. DSG, which stands for “direct shift gearbox,” is the marketing term used by VW/Audi for their dual-clutch transmission (DCT). In simple terms, this type of transmission is composed of two separate manual transmissions inside a single case, each one
Chrysler 948TE: It’s a doggy dog transmission
The Chrysler 948TE transmission (seen in the above image) stands out for its unique use of two dog clutches: dog clutch A and dog clutch F. Dog clutch A (Figure 1) is used to drive an annulus/sun gear while dog clutch F (Figure 2) is used to hold a double sun gear stationary. In a
Raybestos introduces Ford 10R80 clutch pack
Raybestos Powertrain has introduced a new Ford 10R80 high energy clutch pack module (part no. RCP96-523). This kit contains 3 A Clutch, 5 B Clutch, 5 C Clutch, 6 D Clutch, 5 E Clutch, 4 F Clutch high energy OE replacement friction clutch plates. According to Raybestos, the high energy friction material meets OE performance
The ins and outs of the Hydraulic Selectable One-Way Clutch
A Hydraulic Selectable One-Way Clutch (SOWC) is used in GM’s 9T50 (figure 1, above) and Ford’s 8F35 transmission (figure 2, below). Its function and design are quite clever. The center plate inside this selectable one-way clutch lugs to the Overdrive Carrier. On the top side of this center plate are spring-loaded struts. Integral to the
TF80SC Gen 1 2-3 flared shift
The complaint A 2005 Volvo XC90 equipped with the TF80SC Gen 1 transmission has a complaint of a 2-3 flared shift. During the overhaul process a brand-new valve body from the dealer was installed, only to find on the initial road test that a 2-3 flared shift still existed. The adaption procedures were performed but
Alto introduces new friction and steel clutches for ZF differential
Alto’s latest product release is a new line of friction and steel clutches for ZF differentials from model years 2011 and on. Alto notes that these clutches feature its K2 high-energy material. As pictured above, two-sided friction, one-sided friction and a steel plate are available.
Alto introduces Mercedes 722.9 friction clutches
Alto has introduced a new line of friction clutches for Mercedes 722.9 Speedshift MCT 7 Speed transmissions. The one-sided clutches are made for model years 2008 and on, and feature Alto’s G3 friction material. Pictured above are the 1-sided friction external teeth; one-sided friction internal teeth, and the steel pressure plate.