Transmission fluid

I don't think over sized tires will have any detrimental impact on the tranny. On a leveled truck I think it might make a couple of oz's difference.

 

This guy is a hack that's selling transmission fluid. Do not believe every video you see on YouTube. DO NOT DO THIS!

His method of getting the "majority of the fluid out" is to run the transmission dry. Then, he runs the transmission without fluid while he adds until it runs out the level check port.

 

Has anyone used a funnel with a piece of tubing to fill the tranny? I tried on a Tacoma but did not have a long enough tube. I have a pump but figure if I could use a funnel it would be easier.

 

Usually how it's done with the 5.7L, through the engine compartment. It depends on location of the fill port. The 4.6L with the tail shaft (2WD) or rear port will be very hard to fill with a funnel.

 

I ran a long tube out the fenderwell to do the fluid. What a pain in the ass. I bought a pump for next time

 

After all this transmission fluid cooler talk and fluid changing talk, I think I'm going to invent a Tundra 5.7L ATF changer, and sell it on Tundras.com.

It would be located near the power brake booster. It would consist of two graduated polyethylene containers (3+ gallons each). One container would be for fresh ATF, with an orificed or adjustable valve tube to feed fresh fluid into the transmission, either through the auxiliary cooler outlet line back to transmission, OR, into the fill port if the return line doesn't flow fast enough.

The second "catch" container would be for the dirty fluid, with a tube from the auxiliary cooler supply line. You would fill the fresh ATF container, and start the engine to pump the old fluid into "catch" container. When the fresh container is empty, and the "catch" container is filled, turn off the engine and reconnect the cooler lines. Done. Safely. As often as you want.

Needs a little development work for gravity feeding fresh fluid at the same rate as the pumped fluid.