Just did mine....
Hiya Chris, having just rebuilt my idler arm there are several ways to go about doing it. 1) if you can get the old bushings out then tilt the bolt to get it out replace in reverse order. 2) drop the exhaust pipe out of the way to change it. 3) this is how I did it after researching on here, loosen the bolt and cut the head off, when reassembling bolt goes in from the bottom w/locknut on top. If I remember correctly the torque is 110 nm
1991 300SE (my ride, 279,000 miles, looks almost new
1954 Cadillac (21 yo son's car, he bought when age 15)
1972 SeaBird 19 ft runabout (old but solid, slant six, Volvo sterndrive perfect condition, undergoing complete overhaul and refit)
1998 Toyota Rav4 (my sons daily driver when he is in the Continental US, PROUDLY serving in US Navy)