10 Speed Latch Valve Stem Repair Kit 10L60

Ford 10R60, 10R80 and GM Gen. 1 10L60/80/90 transmissions utilize a set of four latch valves. The valve's spring stem and the exhaust gap in the retaining clip make contact with one another, causing raised edges, burrs and other damage on the stem. This damage can lead to spring entanglement, improper stroking of the valve and potentially bore wear, which can result in failures and burnt clutches.

Prevent future stem and spring damage with Sonnax latch valve stem repair kit 105740-47K. This kit includes a steel sleeve for the shortened OE valve to operate in, along with a new spring. The steel stem insert provides a cost-effective alternative to drop-in or oversized valve kits. Designed for fast, easy installation, this kit restores OE function and guards against future wear.

• Reinforces the valve stem to prevent future wear
• Less expensive than replacement valve kits
• Drop-in Zip Valve™ parts install quickly and easily

10L60 (Gen. 1), 10L80 (Gen. 1), 10L90 (Gen. 1), 10R60, 10R80

What determines an Generation 1 vs a Generation 2?

While the specifics differentiating "Generation 1" and "Generation 2" of the 10L80 and 10R80 transmissions can be nuanced and might not have universally agreed-upon official designations from GM and Ford, here's a breakdown of the characteristics and changes that generally distinguish earlier from later versions:

General Timeline:

• Generation 1: Typically refers to the transmissions produced from their initial introduction around the 2017 model year up to roughly the 2018-2019 model years.
• Generation 2: Generally encompasses transmissions produced from around the 2019 model year onwards.
   

Key Differences and Updates:

It's important to understand that the 10L80 (GM) and 10R80 (Ford) were co-developed but have slight manufacturer-specific differences in their electronic controls and potentially some internal components. However, some common themes of updates exist across both:

• Valve Body and Solenoids:
  • Generation 2 often incorporated revisions to the valve body design and solenoids to address early issues like harsh or erratic shifting and potential solenoid failures. Some sources mention the addition of a default solenoid and a lower valve body in the Gen 2 GM units.
     
• CDF Drum:
  • The Clutch Drum Forward (CDF) has been a known point of concern in these transmissions. There have been updates to this component over time. Later production models (which would largely fall under the "Generation 2" timeframe) are more likely to have these updated, more robust CDF drums.
     
• Pump Design:
  • There have been reported differences in the oil pump design between GM and Ford versions, with GM using helical-cut gears for noise reduction and Ford using straight-cut gears. There's discussion about the durability of the bearing in the GM helical gear design. It's possible that later generations saw refinements in these designs.
     
• Software and Calibration:
  • The Transmission Control Module (TCM) software and shift strategies have likely been updated over the years to improve shift quality, responsiveness, and overall reliability. These software updates would be more prevalent in later production models.
• Cooling:
  • While not necessarily a distinct "generation" difference, ongoing improvements in transmission cooling (potentially through design changes or recommendations for larger capacity pans) would benefit later models.

How to Identify (General Guidance):

• Production Date/Model Year: The most straightforward way is to look at the build date of the vehicle or the model year of the transmission. Generally, earlier years (2017-2018) are more likely to be considered "Generation 1."
• Valve Body Appearance: Some sources suggest visual differences in the valve bodies, such as the presence of logos on Ford valve bodies and the addition of a default solenoid and lower valve body on later GM units.
   
• Technical Service Bulletins (TSBs): Checking for TSBs related to transmission issues for specific model years can provide insights into problems addressed in later revisions.

In summary, the shift from "Generation 1" to "Generation 2" of the 10L80/10R80 transmissions represents ongoing refinements and updates aimed at improving reliability, shift quality, and addressing early production issues. These changes likely involve the valve body, solenoids, internal components like the CDF drum, and the transmission control software. Identifying the exact generation often relies on the vehicle's production date and potentially visual differences in certain components.