Are the chassis and differential thicknesses of the 60 series sufficient for 6bt weight? I am waiting for the comments of those who swapped 6bt and used it for a long time without strengthening the chassis and differential. I know that in the country I live in, Patrol Y61 broke the differential due to the weight of the 6BT. That's why before starting this project, I want to know whether it is necessary to strengthen the differential housing and chassis with additional plates.