I am having starting issues, which about 70-90% of the time I crank the car, the starter just spins and tries to crank, sounding/feeling like a shutter everytime.
Where do I start checking? I am guessing a bad connection.
I agree. If the bendix isnt meshing with the ring gear, check your starter bolts (be sure they didnt back out). Otherwise, check the bendix and if ok, the ring-gear.