GM TH400 Center Support U34630A - Used But Guaranteed For 4WD/RWD Transmissions

Building a transmission or fixing an old one?

Here's a solid used GM TH400 center support.

The part number is U34630A, which supersedes the 34630 and 34630A numbers.

It came out of a 4WD or RWD setup.

We’ve cleaned it up and inspected it closely—no cracks or damage.

It's a direct replacement part, so it should drop right in.

And to give you some peace of mind, it comes with a 1-year warranty because we stand behind the fact that it works.

If you're piecing together a TH400, this is a good, reliable foundation without paying for new.