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1970 all original Th400 talk about history... It's amazing being able to put hands on something this old and never been touched.

Extreme smash up derby JUST BUILT Th400... Well you know how it goes when they stay built before. Let's just see how built it ...

Forward and Direct Drum info.

If you're engine buff you might be wondering if the 4L80e or the TH400 is ther right choice. We've got you covered. Find Us: ...

I begin the TH475 rebuild with a quick overview and then move right into the subassemblies. I also discuss the dual feed ...

See what it takes to install a torque converter. TH400 Torque Converter: 1). Identifying internal components. 2). Prep converter for ...

The GM TH400 transmission is often called “bulletproof.” But what's the real story behind this legendary piece of automotive ...

When racing a TH400, it's critical to upgrade the forward and direct drums. The key is not only stronger, more durable parts, but ...

Spending THOUSANDS of dollars on a TH400 that didn't last! Builder error and set up for failure. This unit will be about to handle ...

Cowmaro Apparel: http://jdads.bigcartel.com/product/cowmaro-tee ...

Let's go back in time to 1970 with an all original Th400… This will shock you all on how it looks!!! Let's turn this Th400 3 speed into ...

A VHS video that I learned on 20+yrs ago. No hi-perf stuff but good basic info with some good tips.

TH400 BIG TURBO = DESTRUCTION!!! This thing was half built from the start. Why go to extreme links on half of it and skimp the ...

Install: B&M Vacuum Modulator for GM TH350 & TH400 Automatic Transmissions 20234. Please subscribe to our YouTube ...

And a few tips!