Gearbox noise

1to 3 weeks lol …I do boxes at our place ,you would be talking if all things are ok getting parts and authority 2 days worse case 3 days…1day to remove strip box estimate get authority and order parts …Get parts the following day rebuild get it back in the truck,which may take it in to the 3rd day ,The ZF box is easier than doing an engine job !!! If still at our place in 2 weeks it I because the customer hasn’t picked it up lol…Input shaft is a piece of ■■■■ to do