I just rebuilt my nwc t5 tranny 1-4th works fine but 5th gear grinds when shifting into 5th when I shift it quick, also it will pop out sometimes while driving down the road and I will have to shift it into 4th to slow it down to get it back into 5th. Can someone
tell me what I could have done wrong?
Thanks,
Mike

 

The T5 is not designed as a race trans. All the t5's I've ever driven will grind when shifting fast into overdrive.

If it's popping out of gear, you either forgot to reinstall the shift detent ***** for 5th, you bent a shift fork and it's not allowing full engagement, or you messed up 5th gear or the clustershaft from speed shifting into od.

 

I have never speed shifted into 5th on this trans because it will not shift normally.
What does shift detent ***** look like?
Thanks

 

Sounds to me like the Torrington bearing that belongs behind 5th gear is missing; or its race (looks like a thick washer) is missing.

 

You are saying there is suppossed to be a bearing between the case ant 5th gear??

 

Yes

On the back of the countergear, before you put on the extension housing, you should have a gear, a blocking ring (brass thing), the synchro assembly (consists of the hub and sleeve, with keys and springs inside the sleeve); then a small thick thrust washer, a Torrington bearing, a thinner larger thust washer, and a snap ring. A small plastic oil funnel should slip into the center of the shaft.

 

I tore my trans back apart and the inserts were missing???? I said"WTF"!!!!! I had not put the the retainer on corectly and the inserts fell out and were ground into metal dust. Those gears are pretty strong I cleaned the trans up with a pressure washer and replaced the 5th gear brass syncro and I am back in business. That is why I rebuilt my NWC trans first to learn from my f-ups. I have a WC trans I am going to rebuild next.
Thanks for Ya'lls help. Later :rockon: