When sitting still and the car is idling it will vibrate violently while in Drive. While in Park it is fine, as is Reverse, and neutral. However it does not vibrate when you throttle it up a little. Only when it is idling. While in gear and moving if you let off the accelerator it will start to...

I'm rebuilding the stock 2.5 non turbo, and me and my dad aren't gonna use the halfshafts. He said there won't be any vibration differences and it'll make the engine perform better. I want to know how much more power will I get from removing the halfshaft assembly and how much more (if any)...

Its a 1986 dodge shelby charger. The passenger and front motor mounts were bad so I replaced them. I put them in the same way the old 1s came out. But I dunno if the old ones were installed wrong. Are the weights on the passenger side mount suppose to be up or down? Any pics of correct...

So i got this strange vibration when i either drive straigth or turn left. If i turn right it seems to go away. I suspected the driveshafts and i did notice i have installed the drivers side wrong-so the spring had slipped and broke inside the inner cv-joint. So i replaced the spring/cup since...