6/8.5 on 1980 dually...and then some

those are the air lift helper bags...the brackets are made for the bell tech c notch so i had to do lil mod to make them work those bag are inflated to 50psi when there not inflated they are smaller ? but maybe you have a different bag?
and i should be able to get a measurement today if you still want them?

thanks

Mine might be an older style then, cause they are same diameter as my springs are wide.

Yes, I would appreciate the measurements snapdaddy.

it appears to be about 2 3/4

Thanks, snapdaddy. I will deffinately have to go another route.

any advise for someone doing this for the first time? think i'm ordering my kit today..... i just want to know what to exspect. i have lots of expieriance working on vehicles just never done one of these...

Truck looks great! How much lift do you get if any out of the helper bags when there is no load?

umm i havent measured it but with the bed i was playing with them and it seemed like about 2" giver or take ....anyways it not very much

Any update on truck ? Did u ever cut the lowering springs more? What size front tires u running they look tall.

I kinda forgot about this thread so I guess I will update this thread I ended up ditching the 454 because it decided to eat Ann exhaust valve so I swap it for an 06 6.0l
I'm waiting on the 24 semis to get back from the powder coaters before I cut the front spring

Tire size is a 215/85/16 ill be running a 275/30/24 on the semi ill post picture here in a bit