Put the driveshaft in before you run it unless you want all your transmission fluid to end up on the floor when it runs out the tailshaft.
If your parking brake works properly you can use that to hold the car while you run through the gears.
I don't recommend running it through the gears without the driveshaft, you risk breaking parts since there will be nothing to stop the rotation when changing between reverse and drive and park. It'd be a shame to **** up your new trans.
If your parking brake works properly you can use that to hold the car while you run through the gears.
I don't recommend running it through the gears without the driveshaft, you risk breaking parts since there will be nothing to stop the rotation when changing between reverse and drive and park. It'd be a shame to **** up your new trans.