AT dealer we do that on a drive on rack, so that the full load is on the suspension & tires.

Then push up on the drive shaft & trans (lift) to remove any tension in the driveline, and then tighten the bolts.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator