[RoTpFerD97]

I've got a '97 Mustang GT.. I've been told I can up shift without the clutch.
I tried it a little bit today on the freeway and after some red lights and I got it to work smoothly most of the time, I grinded a little a couple times but nothing huge.

As long as you do it right, does it cause any damage?

And what about down shifting?

[03SonicBoom]

It can be done either way. You just have to match the engine revs to the gear speed. If you're off by a little bit then you're going to grind. If done properly, then it doesn't cause any damage and is actually better for the tranny b/c you don't need the syncros. If done incorrectly, it's terrible.

Why run the risk of causing damage when you have a perfectly good clutch?

[dansgt]

your better off using the clutch. in a car whats the big deal? as part of my job i have to drive a 24' truck, and its manual transmission is designed to be shifted without the clutch, so you use it in that its harder to shift, but in a car, whats the point? its so easy anyways and you dont risk damaging the gears...the risks out weigh the possible benefits.

[Trick Tuners]

No grind = no problem. You can do it up or down, but if you do it a lot, chances are you will end up grinding the gears and hurting the syncros. just use the clutch. I'll do it sometimes if i have my hands full and i'm driving with my knee and need to shift without taking my knee off the wheel.