Ahh, Perhaps you have bent your exhaust up into the body, That would cause a terrible vibration at low revs. Jump under the car and have a look.
Ive done **** like that before trying to drop of gutters in a lowered car, I usually beat up the floor pan / exhaust. No biggie, Take it very slow with the biggest angle you can achieve.
Ive done **** like that before trying to drop of gutters in a lowered car, I usually beat up the floor pan / exhaust. No biggie, Take it very slow with the biggest angle you can achieve.