3rd gear grind need some help or some ideas to fix this and if so can i get it fixed for cheap

 

Tear it down and replace whichever of the following is worn, 3rd gear synchronizer, slider (aka the sleeve), and/or 3rd gear itself if the engagement teeth are significantly worn.

 

If you have a mild grind, it could be as simple as just the synchro spring. If it's been doing it a while, you will probably need at minimum a 3-4 sleeve kit and possibly a new 3rd gear.

 

If it is a bad 3rd gear, wouldn't he need to replace all the gears not just 3rd since they're all specifically cut from the same piece of metal to guarantee they match? In that case it might be cheaper to just find a new tranny if it's not just a synchro problem - if what I'm asking holds true.

 

No, as long as there is no abnormal wear on the other one, you can just swap in the one. They are not cut from the same piece of metal. The same type, but not the same piece. When a gear is made, they make a bunch of the same one so production happens quicker. Once the quantity of that part is met, they change tooling and go to another part. If you buy both main and counter 3rd from Honda, you won't get a matching set, you'll get whatever they could get their hands on first.

 

do you guys have any pics of what a worn sleeve/gear looks like? i already have a hard enough time telling whether a synchro looks worn or not..

 

Actually, I'm getting ready to do a new sleeve kit in a trans for a friend. I'll take pics of what a worn sleeve looks like and what worn synchro springs look like. I'll see if I have a 3rd gear that is worn down, too.

 

I would say 90% of the time the gear does not need to be replaced unless the dog teeth are REALLY BAD. Third gear hub/slider/synchro SHOULD take care of the problem.

 

sweet, my grinds aren't nasty sounding at all, i've seen other trans and it sounds like the clutch isn't engaged all the way and you're grinding the hell out of a gear trying to find a hole.

do you think this kit should cover everything i need for a rebuild?

it's a jdm s80 with lsd btw

http://shop.synchrotech-transmission...BSK-SYN101.htm

 

That kit doesn't include the slider or hub. You can take a chance with just the synchros, but if it still grinds you'll be pulling it apart again. What you need is this:

http://shop.synchrotech-transmission...Set-SS-120.htm