Frank Meeker

Ya I'll try that.

thanks

How did you build the hydraulic gearbox drive unit for the drum . Do you make them for sale ? Thanks 

🤤 Does any know of 3d printer files on 1/25 scale hydraulic gearbox for concrete mixer models. I not a scratch builder , but would someone have resin units or can build one for me. I want to replace the chain drive with a Hydraulic driven gearbox for the drum. Thanks. I see a few scratch built concrete trucks that have this gearbox feature. Thanks

Helow from the Grand Canyon State. Built truck when I was a kid, just started doing it again. Amt Kenworth Challenge mixer brought me back. Here a hydraulic gearbox hydraulic hose schematic from YouTube screen shot.

I looking to replace the Chain drive on my Amt Kenworth/ Challenge transit mixer kit with a  Hydrostatic drive uni,.( Hydraulic drive motor) for the drum. I seen on YouTube a rebuilt Amt Kenworth mixer truck kit with a scratch built hydrostatic drive with hydraulic hose line routing diagram. Using front hydraulic pump unit. I was wanting to go with behind can hydraulic pump unit. If not I'll go with the front mounted unit.