How deep is a stock TH400 pan?

This GM TH-400 transmission pan feautres a stamped 4000 Turbo logo with drain plug. This transmission pan is stock capacity with a depth of 1-7/8″.

What does a deeper transmission pan do?

The more fluid you have, the less the fluid has to work. Deeper pan means fluid can sit & cool longer before being put back to work.

What does a 400 transmission pan look like?

The TH-400 uses an oblong-shaped pan with one side having a “hump” in the pan and one side is curved while the other two sides are straight. The TH-400 pan also has two circular indentations on the humped side of the pan. Measure the transmission.

What does a Turbo 400 transmission pan look like?

The Mac-Daddy 400 The Turbo 400 has a very distinct fluid pan. The 400 transmission has a main case of cast-aluminum alloy with a length of 24-3/8-inches long. Its case is essentially smooth. The fluid pan shape is irregular, being likened to distorted Texas state borders.

Does larger transmission pan help?

A deep transmission pan allows the transmission to hold an extra 2 to 3 quarts of transmission fluid. Although it might not seem like much at first, 2 to 3 quarts can actually help a lot in the long run and is highly recommended for larger vehicles or towing/hauling.

Is there pressure in a transmission pan?

Functions of the transmission pan The ATF is necessary to provide fluid pressure, lubrication and cooling functionalities for your automatic transmission and it’s all held in the transmission pan.

How much HP can a TH400 handle?

About 400-450 HP/TQ is the limit on the stock TH400.

Is a Turbo 400 the same as a TH400?

They are, for the most part, interchangeable on the same vehicles; however, you would normally find the TH400 in larger engine applications because they are able to function more reliably at higher engine rpms.

Are all TH400 transmissions the same?

Why is my transmission pan leaking?

The most common source of a transmission leak due to faulty installation is from the transmission pan. The pan is not mounted correctly or incorrect bolts are used to secure it. Something as simple as these bolts will make transmission fluid leak from the pan. Hopefully, the bolts just need to be tightened.

Do you use sealant on transmission pan gasket?

Silicone Rubber Adhesive Sealant uses only a bead of sealant to make the seal between transmission and pan. Although original equipment manufacturers use silicone sealant in these applications, most gasket types will work with these style pans as they are of the flat surface type.

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