Any automatic transmission made within the last 15 or 20 years is going to be a computer controlled. And, just like a modern engine, the computer now knows when there’s something wrong with the transmission. If the computer thinks that there’s some sort of critical problem is going to destroy the transmission, it will put … Read more
The torque converter is responsible for converting the energy generated by the engine at the flywheel and transferring it to an automatic transmission. It functions in the same place in the driveline as a clutch would, creating a bridge between the engine and the transmission. When they go bad, they have the potential to leave … Read more
The 4L60E transmission is the direct descendent of the 700R4, and as such already had over a decade of refinement put into it before it ever even made it into production. This means that even the early ones were pretty good from day one of their production life. While there have been many case changes … Read more
One of the largest questions amongst Chevy guys is TH350 vs. TH400. Which one is better. Even though they have been out of production for decades, there is still a strong demand for them. Their simplicity and durability make them attractive to people in the LS swap community. They are certainly are both great transmissions. … Read more
It’s been over 20 years since the 700R4 made it into a production vehicle. While they have been fairly reliable over the years, we have written this guide specifically to help with troubleshooting your 700R4 transmission. When it comes to doing any sort of troubleshooting on a vehicle I think it is incredibly important to work … Read more
I was listening to an episode of Carcast with Adam Carolla one time. I believe he was talking about finding the right guy to repair a dent in his car. He said something along the lines of you don’t want a guy named Ashton touching this thing. You want an old guy with a name like Duke or … Read more
This short guide is will hopefully help you diagnose simpler Allison Transmission problems. Allison Transmissions have been around for a hundred years and have set the industry standard for durability. The odds are pretty good that you’ll never find your way here, but if you did lets get this figured out! Limp Mode on … Read more
What are the major differences between the 4L60E and 4L65E transmissions? If there were a one-word answer to this question it would be strength. The 4L65E is manufactured to handle more torque than its counterpart. They have an identical looking case. For all intents and purposes the 4L60E became the 4L65E when GM upgraded some … Read more
Back in the day, when you’d go to start a car it would be entirely possible for you to bump the starter and have the vehicle just take off. This would cause damage to property, other vehicles, and even human life. The Neutral Safety Switch was invented to curtail this issue. The neutral safety switch … Read more
Automatic Transmissions have gotten so good since they were introduced in the 1950’s. In fact, some of them have fluid that is supposed to last for the entire life of the transmission. This often lulls people into a false sense of security. Many people NEVER even bother to check their fluid. This is a huge mistake. … Read more