slight transmission grind

[Beems240sx]

i just noticed this a few days ago. when the car sits overnight and is ice cold i noticed a slight grind shifting into 2nd and into 3rd. mind you the engine temp is cold and im shifting just over 2K rpms. once everything warms up it goes away. i just changed the gear oil to redline MT-90 about a week ago. it helped ALOT. before going into 1st from a stop was ridiculous. one thing that concerned me was that only about half a quart of gear oil came out of my trans and it was really dark and thick. i have NO idea how long it was in there for but it was way to long. i have a feeling my syncros are going. i found a rebuild kit at autozone for 150 bucks. how much are syncros from Nissan? i would rather have OEM parts. thanks guys!

[Beems240sx]

any help?

[carkook]

I bet the clutch teeth on the speed gears are worn, as well has the syncro collars and the blocking rings. Try double clutching specially when down shifting.

[Beems240sx]

i do double clutch downshift i dont like to down shift when the car is still cold. i noticed yesterday it was really warm outside and the car never grinned once...

[scottydog]

You could try changing the gear oil again, as there was likely a lot of grung built up. Get the transmission good and warmed up before you drain.

But yea you prob have some wear, may need a rebuild. Where did all the oil go? have you checked the front and rear seals?

[Beems240sx]

well when my friend did the manual swap, when he owned the car, he failed to mention that he spilled a "little" fluid. so that problems solved. i noticed my rear seal always appears wet like. no drips, puddles or anything tho. it warmed up outside here and shes been shifting very good now.