Thread: Transmission Fluid - 173K..To change or not to change, that is the question

As a practice over the years, when my tranny pan doesn't have it, I've been adding a drain plug. I got spoiled with the 4L80E's and some older truck trans that had them so I just bought them and put one in. Before I started adding the plugs, I normally changed the filter and fluids every 75k or so. Now I run the filter for 100k and make the fluid change around 50k........besides the plug makes draining a lot cleaner and easier.......wish they did them at the factory.

Originally Posted by bloaty57

As a practice over the years, when my tranny pan doesn't have it, I've been adding a drain plug. I got spoiled with the 4L80E's and some older truck trans that had them so I just bought them and put one in. Before I started adding the plugs, I normally changed the filter and fluids every 75k or so. Now I run the filter for 100k and make the fluid change around 50k........besides the plug makes draining a lot cleaner and easier.......wish they did them at the factory.

how do you add that? welding? sounds nifty...