Reply to "Clutch adjustment?"

Depends on who actually does the work. If you order the parts after pulling your ZF and do a tear-down to determine what wore out- the synchro assembly, the gear cone which requires full replacement of that gear and maybe the mating gear as well, or all of the above, and your assessment is correct & you reassemble it yourself correctly, is one price.

Or crate the 155-lb gearbox as befits a $6000 assembly and ship it to an overhaul facility, synchro R&R done this way can run several thousands of dollars and several months down-time.

Also realize that all new ZF parts including gaskets only come from RBT Transmissions and everyone pays full retail for them. Overhauls therefore all have the same parts costs so any variation comes from cheaper labor rates or cannibalized used parts recycled into your gearbox. Nothing wrong with that except used parts obviously won't last as long as new ones.... Some gasket dimensions are critical, too.

Last bill I saw (a dozen years ago) including shipping to RBT, tear-down, inspection and reassembly with a few new gaskets and only an inexpensive thrust washer replaced- no synchro required due to a mis-diagnosed noise- then return shipping, was for $1100. Took a month.