Transmission Digest's 2021 Supplier Profiles

Transmission Digest’s 2021 Supplier Profiles

The following pages contain powertrain industry profiles, key people and product information from leading companies in the marketplace. These profiles typically serve as an introduction for companies participating in autumn trade shows which, this year, have been canceled due to the Covid-19 crisis.

Companies include: Evolution Driveline; Freudenberg NOK; Jasper Engines & Transmissions; Precision International; Raybestos Powertrain; Sonnax; Stellar / Lubegard; Transmission Specialties; WIT; and Zumbrota Drivetrain.

Download the PDF for the 2021 Supplier Profiles.

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A mysterious shudder: Locating a problem with no fault codes

It was a dark stormy night… well, not really; it was just an ordinary Tuesday. On that ordinary Tuesday, a customer came into our store very distraught. He had been to several shops with concern of feeling a shudder while driving his vehicle uphill. None of the other shops or the Toyota dealership could give

RRfeature-April-23

It was a dark stormy night… well, not really; it was just an ordinary Tuesday.

On that ordinary Tuesday, a customer came into our store very distraught. He had been to several shops with concern of feeling a shudder while driving his vehicle uphill. None of the other shops or the Toyota dealership could give him a definite answer to the cause of his concern. They all said it was possibly the torque converter, but they were not 100% sure.

Chrysler ZF8 generations 1 and 2 identification guide

In 2019, some Chrysler/Ram/Jeep applications that utilize the ZF8HP transmission moved to a second-generation unit with a new designation and numerous changes for better performance and durability. Gen. 1 units are classified as 8HP45, 8HP70 and 8HP90; while Gen. 2 are classified as 8HP50, 8HP75 and 8HP95. Internally, the Gen. 2 transmission had numerous hard

Tasc-Tip-April-Figure-1-Gen.-1-'B'-Brake-Components-1400
Photo gallery: TCRA Annual Meeting 2023

On April 13-15, one of the transmission industry’s most notable events took place, as members of the Torque Converter Rebuilders Association (TCRA) had their annual meeting. For this year, which was the 25th time this gathering has occurred, the meeting took place in Charlotte, N.C. As always, it served as an occasion for industry friends

California’s Rohnert Park Transmissions is a multi-generational success story

Fernando Gomez’s dad got into the business after being in the Army. “It was what he always wanted to do,” Fernando says. But that wasn’t the case for Fernando at first. Related Articles – Kitting keeps us profitable: Aftermarket kit suppliers listing 2023 – As cars keep aging, what will the future look like? –

When a transmission problem isn’t a transmission problem

Let’s take a look at three examples of times when a car’s issue seems to be a transmission problem, but a closer look reveals another culprit. Related Articles – GM 6L series no-movement conditions: Analysis and repair tips – 2023 State of the Powertrain Industry – Powertrain industry directory and buyer’s guide 2023 Case study

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Sonnax releases splined stub and sleeve kits for performance vehicles

Sonnax highlights its new aluminum splined stub and sleeve kit, which the company says can reliably drive power from the engine and transmission to the differential in modern muscle cars and custom street rod/hot rod vehicles. These kits make it easy to build, balance and service a rugged performance driveshaft for non-slip-yoke applications, since the

Sonnax introduces low/reverse sprag rebuild kit for Chrysler 68RFE

Sonnax highlights its low/reverse sprag rebuild kit for Chrysler 68RFE transmissions. The company says this kit (part no. 72642SK) allows replacement of the end caps, low/reverse sprag elements and retainer plates without needing to buy a full sprag assembly. Related Articles – TransTec introduces stator sleeve tool kit – GFX introduces filter for Honda CVTs

Sonnax-72642SK
Rostra offers variable bleed solenoids for second generation Ford 6F35

Rostra announced that it offers 10 NH/NL variable bleed solenoids for bands 1–5 for the Ford 6F35 transmission (second generation). Touting an improved design, Rostra says that these solenoids can achieve improved sensitivity, reduced hysteresis over the OE design and highly accurate pressure control in the 6F35. Related Articles – Alto introduces new extension housing

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Sonnax highlights clutch backing plate for ZF transmissions

Sonnax highlights its heavy duty “D” clutch backing plate (part no. 35570-75) for ZF8HP55, ZF8HP70 and ZF8HP75 transmissions. Related Articles – GFX announces new pump for Ford 6F35E – Georend highlights billet aluminum stator for torque converters – Dana announces new line of electric transmissions for trucks and vans According to Sonnax, this plate can