I'm replacing several of my rear end drivers side control arms this weekend and purchased all the necessary replacement bolt kits for each of the arms.

Two quick questions:
1. Do I need to apply any sort of lock-tight on the bolt kit threads during reassembly?
2. Is there any specific torque setting that I should use when tightening the control arm bolts?

On a side note, I found that all new control arm bolt kits all employ a 12mm female 12-point torx head, so I had to find the appropriate male-bit tool to do the job. To my wonder, I found a set of metric 12pt torx head bits at Kragen Auto, which was the last place I thought I would find them. The torx bits use a 13mm hex shaft, so i can either generate torque by using a 13mm wrench or one of my 13mm sockets.

I had found some recommendations to use a T55 Torx head bit, but I understand these are ANSI sizes and also include only 6-point bits. The last thing I wanted to do was strip one of these control arm bolt heads, and the 6pt T55 was just not nearly as snug as the 12mm 12-point bit.

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Steven
1989 260E (276K miles)
1995 E320 (50K miles)