Hello. In the section of parts catalog in the "synchronized gear
> range" is a choice of two types of synchronization.
> ZF and Graziano. How to determine which is correct for a specyfic
> The problem is the gearbox.
> Transmission jumps out of the low and high range.
> Fourth gear locks up and you can not turn it on.
> Transmission is not yet open.
Is it an IH or Case IH tractor and what is its serial no ???
What is the transmission serial no ????
If yo look under left hand cab footstep at transmission filter you will see aflat machined area on which the transmission serial no is stamped, i need all the no's and letters stamped there, thank you ???