66 mustang questions

[daccrow86]

Could someone please tell me if it will affect my transmission, drive shaft, ect. if i was to place my car in neutral rev my engine and shift into into drive (I have an automatic straight six)

[joinrdie]

The short answer is yes. It puts an impact on your transmission, U-joints, drive shaft and rear end. All of these parts have tiny tolerances, i.e. spaces through which they can rotate without contacting the next part down the line. When a load is suddenly applied, it causes these parts to slam into each other, rather than having the load gradually applied. So basically it's like hitting all these parts with a hammer. Your car will probably not grenade if you do it once, but don't make a habit of it unless you're planning on replacing everything soon.

[fordkid68]

is it different then popping the clutch in A manual. I mean I know popping the clutch wears things out faster but is that saffer then shifting from neutral to drive under load in an auto.


thanks
fordkid

[joinrdie]

It's a little different. When you dump the clutch on a manual, the clutch is going to slip a little before it's all the way out. And the load is not applied all at once. It's still pretty hard on the whole drivetrain, just not as bad as a neutral-drop, where nothing is designed to slip.

[Rev]

In addition to ruining the tranny, a neutral drop won't help your accelleration any either.

Rev