🔌 ICT Billet TH400 Speedometer Plug - High-Quality Aluminum Construction for Turbo 400 Chevy Transmission - SBC 305 327 350 383 5.0L 5.7L V8 - Designed & Manufactured in the USA (Bare Aluminum) Review

The product looks good. I've had it installed so far, but I would recommend the manufacturer that they have a different bracket system to hold the fork in place. I ended up getting a different washer and used my factory mount.

Holding a washer out of the way is not ideal as it puts a side load on the plug rather than being held at right angles although it most likely won't leak anyway I used the original hold down clamp and bend them slightly so the load is more concentrated on the fork. There are no leaks at all.

My plug fitted well and didn't leak but the bolt/washer holding it doesn't seem to fit. The washer holding the fork had less than a 16th bite on the fork. Sitting in a race car with an exhaust pipe next to it seems sketchy. I contacted the manufacturer and they said that was the case.

Came as intended, used the truck for about 10 hours and haven't seen a leak yet. The only problem I noticed was that the aluminum was too sharp, as if it hadn't been cleaned enough after machining. I had to use Scotch Bright to clean it up a bit. The price is not bad considering it is a machined part.