Clearly, the biggest difference between the TH400 vs 4L80E is the 4L80E’s overdrive gear. Although they come from different eras, there is quite a bit that these two transmissions have in common. The mere fact that people are so interested in this topic is a testament to the absolute bulletproof reputation of the TH400. There … Read more
Traditionally finding the thermostat on a car or truck has been a relatively easy job. It used to always be right there on top of the intake manifold. Now, where the thermostat is located is going to depend a heck of a lot on whether the engine is transverse mounted or mounted longitudinally. A basic … Read more
While both the 200-4R and the 700R4 came out at about the same time, there are quite a few differences between them. The nice thing about them now is that while they both had their shortcomings when they were first released, they have been ironed out. The only exception to this would be if you … Read more
The 700R4 and 4L60E transmission are not siblings. It is better to think of them as the continuation of the same design. From the early eighties until quite recently it has been in service in GM passenger vehicles and light trucks. Throughout that whole period, they have constantly improved. When the 4L60E made it into … Read more
The 4T65E is for the most part a fairly reliable transmission. It is the successor to the 4T60E. Variations of this transmission have been common since the 1980’s. By the 2000’s most of the kinks were worked out. But, like everything else, it’ll break and wear out with mileage and time. So without further fanfare, … Read more
What does a CV joint do anyway? A CV joint (short for Constant-Velocity joint) transfers power to the wheels exactly like a drive shaft would on a rear wheel drive car. The rub with a CV joint is that it has to transfer power at MULTIPLE ANGLES. There are two CV joints per axle. They … Read more
Transmission replacement time can vary greatly between vehicle models and driveline types. There’s no one size fits all answer to this question. But, by focusing on the two types of driveline you’ll be working on, it’s possible to get a better idea of what you’ll be getting into. The two main driveline types are front … Read more
The PO700 trouble code is a code thrown out by an automatic transmission whenever it detects that there is trouble. It is a general code. This means that it should be accompanied by some other code that should tell you the specific problem. PO700 is and OBDII code and not just GM. If you are … Read more
When the transmission light comes on it is important to pay attention to your vehicle. If your car or truck is still driving properly, it is not the time to panic. We’ll help you determine what is wrong with your transmission, and why the light is on. Here are a few simple steps that you … Read more
Nothing is worse than sitting in a vehicle that won’t go anywhere. It’s even worse when the engine is running , but the vehicle won’t move. We’ll assume that you’ve found yourself in a situation where your automatic transmission car won’t go into gear, and need help right away. Let’s get straight to it. We’ll … Read more