TH350 vs 200-4R Differences

The TH350 was GM’s go to transmission for light duty vehicles from the late sixties through the early eighties, that is until the 700R4 and 200-4R began to replace it.  When comparing the 200-4R (often called the 200r4) vs the TH350 there are quite a few differences, and also quite a bit in common. The … Read more

Th350 vs 700R4 Differences

The TH350 was GM’s go to transmission for light duty vehicles from the late sixties through the early eighties, that is until the 700R4 and 200-4R began to replace it.  When comparing the TH350 vs the 700R4, there are quite a few differences.  The biggest one is going to be overdrive. It is important to … Read more

Th400 vs 4L80E Differences

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

700r4 vs 4L60E

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

TH350 vs. TH400

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