Bolster Shackles?

[LowTech]

I've been searching for shackles for the M796 Bolster trailer. I haven't been able to find any and don't know if I want to use some civy version. It says it the TM that there are 14 of these shackles. After counting out the set up, I'm thinking that the ones they use for the safety chains are the same as the tie downs. Is this true?
If so I'm going to pull those off, measure, and get the closest I can find.

If anyone has some spec's on these, or where I could find some, I would be very grateful.

 

[LowTech]

I know there's some people out there w/ compete trailers. Would someone be willing to pull a shackle and give me some measurements?

 

[rosco]

I'll see what I can find tomorrow. Seems like mine has two kinds. The smaller version is very lose to civi common shapes, which i'm sure would be strong enough, but will check it tomorrow.

 

[LowTech]

Thanks, 4 of them should be larger and are the lifting ones, I think.

 

[rosco]

Actually, there are 8 big shackles on the Bolster. Measuring them, they are an inch larger/longer then the ones on the 101A2 -you probably wouldn't be able to notice much difference. The ones on the 101A1, are the same as the small ones on the sides. The Big Ones are nice, but I want to have all of them - they can be handy