I got a good answer on my previous post about the drive shaft on a 1981 w123 240d manual trans. 2 wrenches are needed to turn the nut on the D/S a 41mm and 46 mm and they can be bought for around $100 depending on the source. I found a 2 wrench set of those 2 sizes online for about $30 that's used on 4 wheel ATV's. They look like giant crow foot wrenches that you turn with a ratchet. They are made of metal plate that looks to be about 1/8" thick. They are "Y" shaped with a square hole for the ratchet. Has anyone ever used wrenches like these for this purpose? Thanks.