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It is a moot point now, but I saw this lunette extension on a trailer today so I thought I'd post it for future reference.

WOW! Who makes that blade? I need one.

I agree, I'm sure Edison or GM had the extension engineered, but we don't know what parameters they used. What holds up for the first 500 miles might fatigue & suddenly fail at 600 miles. I'd be more concerned about the amount of tongue weight trying to bend the bolts rather than overall trailer...

I found one of the extensions with pintle still on a truck that has cannibalized for parts. (80's vintage GMC Generals are hard to find) Couldn't get too close because it was covered in vicious blackberry vines & I didn't have a machete with me. I did get a tape on it though & this one only...

I recall that the pintles were 4 bolt, but there may be some of them too if I find the extensions. I'll check & report back.

I'm up in Seattle at the moment, but I'll call some guys down there tomorrow & see what they can find. I'll check up here too, they are still running some of those trucks- 1985 vintage GMC Generals with 6V92 Detroits, Allison trans, jake brake, some even had AC.

The company I worked for bought a bunch of S. Cal. Edison trucks & quite a few of them had extensions for the pintle to get it back past a step on the service body they used. They were a solid hunk of steel with bolt pattern matching the pintle and at extended about 6-8". We took quite a few...