hey guys i've got an 84 chevy truck im building for rock crawling it is a granny gear 4speed and all that stuff but i have a brand new flywheel and starter on it and i have shimmed it and messed with it a thousand times and cant get it right? i can get it to were it starts fine but soon as i drive it then its right back to grinding and wont engage to even turn the motor over if anyone has any tips plz help me out im bout to give up on it