WANTED. Toploader AD1

693904speed · March 4, 2026, 2:30pm

Good day fellow owners. Anyone out there have a 4 speed Toploader with an AD1 tag for sale?

catalizer · April 18, 2026, 5:02pm

I have a 4 speed top loader behind a 289. Where would I find the AD1 tag?

693904speed · April 18, 2026, 5:18pm

The RUG-AD1 is specifically designed for a 390.

Thanks for the response.

PacificaXR7GT · April 18, 2026, 6:07pm

The tag is on the passenger side of the transmission near the bellhousing end.

693904speed · July 19, 2026, 7:46pm

This is for a big block 390 so what you have isn’t compatible. The tag is located in the transmission case.