The Saginaw four speed transmission is a transmission that was used in a variety of GM cars in the 60’s. They were popular in the Muscle Car era. As a rule of thumb, they were not built to handle the kind of power that a Muncie transmission could handle. So, if you are looking to … Read more
The M30 transmission is a variation of the venerable 4L60E transmission, and is manufactured by General Motors. It has four forward gears, the third of which is a 30% overdrive. M30 itself is a RPO code. It stands for: M30: TRANSMISSION, AUTO 4 SPD, HMD, 4L60E, ELECTRONIC There is a different RPO code for every … Read more
The 700R4 is a very popular transmission in 4×4 trucks. It is both proven and rugged. They can be found all day long in the salvage yard at a very reasonable price. If you are looking for one just keep in mind that the factory units are typically going to found in a Silverado or … Read more
Many transmissions have a harder life than the manufacturer had originally intended. Whether it has found life in a street machine, or it is in a tow truck, a transmission cooler can really help keep a transmission running better for longer. Transmissions wear out incredibly quickly when the fluid gets over the ideal operating temperature. … Read more
Before the invention of the overdrive transmission, the final gear would always be direct drive(1:1 gear ration). So, you had to choose what you wanted out of your car. This meant that all but the most aggressive cars came from the factory with “highway gearing”. Highway gearing tended to be like a 2:73 axle ratio, … Read more
This is somewhat off of the subject for this site, but on the way home from Gulf Shores last week my wife’s 2008 Honda Fit(It married into my garage) lost 5th gear and the D light started blinking on the column. It’ll go into a sort of limp mode. We noticed some really rough shifts. … Read more
A lot of vehicles that people consider doing the LS swap in already come with a healthy 700R4. If you want to save money by keeping your current transmission, it can be done. The most difficult issue that you will run into would be where to mount the TV cable. The transmission itself will bolt … Read more