That was supposed to say OLD not Hold cabovers. Anyone try running Firestone type air bags to assist with the ride? My 58 Cabover ride isn't the best given I have leaf springs up front and back and just shocks in front.

I have seen semi's run airbag assist in back. Curious if it would improve the ride.

 

Semis in general, do not run airbag assist, rather they have a true airride suspension, without leaf springs. If you want to improve your ride with airbags, you can configure the airbags in the "assist" way, but remove a few leafs from the rear.