i rebuilt my t5 twice and both times it is leaking out of the front countershaft bearing. the bearing is good i checked and the case appeared to have no cracks. when i was pressing the bearing in it seemed to slip like it hit a loose spot. the only thing i can come up with is that the case itself is misshapen or the hole has been widened. has anyone come across this or is there a fix without buying a case or a new trans???
it is a NWC T5 out of an 84 camaro. i knew 150 for the trans was too good a deal.

 

loctite maybe where it fits into the case

 

That's likely what has happened, moreso if the trans has been used hard. You may be able to seal the plug with silicone, but still, the gears are going to be mis-aligned a very little bit.
An easy fix (relatively) is to get a NWC case from a V6 and swap all the V8 guts into it. The V6 case wouldn't have been subjected to the amount of torque that a V8 unit would have been, so it shouldn't have stretched any amount. I did this to the T5 in my Camaro back in 2000, and haven't had any problems with it in over 60k miles.

Pete

 

pete does the v6 have the same size holes? if it does i have my old v6 t5 i could dismantle and use the case, good idea thanks. ive tried silicone and loctite and an aviation sealer they use on intake manifolds, no good, still leaks like hell

 

can it be a WC case, the one i have is from a 92 v6 t5

 

I can't say if the WC ones are the same - I haven't had one apart yet. Or even had one, for that matter...
The NWC (or phase 1) used the same cases, but different components.

 

WC cases are different by far. The bearings are a conical type in order for longer life. To tell you the truth Im not sure how much weaker the WC V6 gears are but I personnally would be tempted to throw the WC in as a whole. Maybe someone else could fill you in a bit more than I can.

 

front main seal?...my transmission leaks onto my driveway too..my dad said when we do the clutch to change the front and real main seals...i got both of them from the chevy dealer but havent done my clutch yet..

 

Pete is right about the hole.... If it leaks out the countergear bearing, the trans is garbage. The case is stretched across the front. That's the way they usually die.

Loctite or silicone won't work. The bearing will just spin, and tear it loose.

The 2nd design case is very different from the 1st design. They will not interchange.

I'll bet it makes alot of whining noise in all gears except 4th too.... that would be because the countergear and the clutch gear aren't being held in their proper alignment with each other.

Throw it in the trash and get another one, from a V8.

 

Throw it in the trash and get another one, from a V8.



boy thats not i wanted to hear but i think im gonna have to do it, i already tore the v6 t5 apart and found out i cant use it the hard way. unless i just put the new bearings on the old counter shaft? i think i need a new trans, u r right it whines in all gears i noticed it the other day and the leak is worse. man i was screwed over i think ill give the trans back to this guy thru his living room window. that should about the cost of the extra labor im putting into this damn trans. oh well live and learn

 

but can a WC t-5 take the place of my NWC t-5...

 

Yes, the trans as a whole is a direct swap. There are no external differences in fitment.

 

Yes. I have taken apart a V8 WC, a V6 WC and a V6 NWC. They are all the same case except for the bearing design between the gears in the NWC is different.

The V6 WC case and mainshafts are interchangeable with the V8 WC and are put together the same way. The only difference I could see is the spline count on the input shaft.

 

the nwc bearings wouldnt matchup with the wc countershaft which means i cant use my older nwc setup in the wc case. so im looking for a wc trans for a v8 or a nwc case but i think a wc setup would be better. especially since i have a 350 hooked up to it. u guys know of anything just let me know