Truck: 1994 c1500 5.7, 85k miles, original engine, regular maintenance.
The truck sat for a few days, moved it maybe 20 feet to readjust its parking position and I noticed a fresh oil leak stain had formed minutes afterwards, about 4 inches wide. Got under the truck and found oil dripping off the large crankshaft pulley, and nowhere else. Would this be the front 'main seal' leaking? Any info would be appreciated, i.e. ballpark cost-to-fix figure, possibility to fix in my garage (plenty of tools here), etc.
My daily commute nears 200 miles so I am going to park it until I get this fixed. Thanks for any info.