geddylee

the synchroshave a quietwhine when you shift because they are like little rings that fit into each other, the inside ring has material like a brake pad that slows the gears down so you can engage a gear. That's the way my T-5 works anyway, i don't know about others. but i guess he's saying when it's in gear which mine does to, i've always thought it was just wear and tear. the 3 speed in my mom's 67 coupe whines really LOUD. it kinda sounds cool but it can't be good so that's gonna get changed soon.

Jfsram

The whine you hear for about 1 second as you up or downshift is the clutch disc, input shaft etc speeding up or slowing down.

silver91gt

I would have a replacement handy. my T-5Z was used for around 4000kms of hard driving, mostly at the track, it started whining just a little bit, and it broke 3rd on a powershift, I run nitrous and I know I exceeded the 330 ft/lbs it is rated for. if your stock, or only slightly modded then I would just run it till it breaks, which may be tomorrow, or a year or 5. lol
I ran my stocker behind the nitrous motor for a couple years, I put the t-5z in there when the stocker started to whine like a KB, I put back in the stocker after the t5z broke, and I pretty much drove up the road with it and it broke, im glad 4th still worked to get back to the shop.

5.0 85 GT

ok great cant wait for that..3rd gear has been givin me powershiftin issues...so ill get ti fixed asap

95gtdrop

same in my gt

92GreyGT

If you have an aftermarket shifter then gear whine will be amplified through the shifter handle. A stock shifter, for those of you that don't know this, has rubber insulators that bolt the shifter handle to the shifter to keep this noise at a minimum. When you apply power through a manual transmission and the gears are meshing they are actually trying to push away from each other changing their mesh pattern. When you make more power that the transmission will take the gears spread, so to speak, until just the tips of the gears are touching which in turn shells the teeth off. This is more common on transmission that have a 45 degree tooth pattern like the T5. Tremecs, G Force replacement gears, and Astro Performance super T5 gears are cut on 22 degree or less pattern to allow more tooth contact on acceleration when the gears are trying to spead. This is also the reason why 3rd speed gear is the first to go in a T5. Not only is it the thinest of the speed gears but it is also the furthest from a bearing allow more flex an less tooth contact. Sorry for the long post.

92GreyGT

If your transmission is whining, a clutch and flywheel isn't going to do much. No matter what you do they are all going to whine some. If you've noticed a progressive increase then it's going to be bearing wear that is allowing a different tooth contact on the gears. The bearings in T5s are preloaded, as they wear the preload goes away changing said tooth contact. I'm not a know it all about T5s, but when you are poor and start to break stuff you'd better learn how to fix it and make it last. The best way to make them last is figure out how it all works.That's why I had a stock T5 in an 11 second car, and it lived. It's still sitting in the shop corner ready to go.

splash21

haha sounds exactly like what happened to me. did you strip all the gears in the front of the trans? the kid i bought my car from really didnt seem to know how to drive correctly. when he pulled up he was grinding gears lol. i couldnt pass up the price for what it had in it. got to love the SVO crate motors

xxxmustangtxhc

mine whines to...... i think it is a bit normal ill tell you this my T-5 has had a beat down in the past year and a half and it still runs strong its been though a N/A motor =280 rwhp a S/C =410 rwhp and finally where it is now T-62 Turbo = 480rwhp and it is still going strong.......but i do have a tko 600 in line just in case!!! hahah