You only need to remove the lower engine mount bolt and spacer to change the SC belt. You do not need to remove the splash guard either.
Just jack up the passenger side of the car by placing your jack under the subframe. Once raised, insert a jack stand, lower the car onto it and remove the jack. Now place the jack under the engine oil pan, use a 2" x 4" against the pan and position it as close to the front of the engine as possible. Jack up the engine only enough to take some of the engine weight on the jack.
Turn the steering all the way to the right, remove the 2 push clips that hold the plastic slpash guard in the wheel well to the body, and the 1 that holds the guard to the rubber guard. Remove the nut, stud and spacer from the lower hole of the engine mount.
Use a 15 mm wrench or socket to slacken the tensioner and then remove the belt, taking note of the orientation around the pulleys. When looking through the wheel well you'll see how the belt must be slid of the the crankshaft pulley and behind the engine mount.
Reassemble in reverse order paying attention to line up the belt properly on the crankshaft pulley and all the other tensioner and idler pulleys.
Hope this helps.
40th Anniversary Edition
13.074 @ 106.579
FWI | 4" Intake | LQ4 | N* TB | Custom TB Adaptor | Ported SC | 2.8" Pulley | Custom Intercooler | Ported LIM | Custom Ported Heads | 105# CC Springs | Modded Retainers | Oil Restricted Push Rods | CC OE-R Lifters | XP Hot Cam | TOG | HF Cat | 2800 ST | 3.29 Gears | DHP PowrTuner | LC-1 Wideband | Engine now retired |