Broken tooth on main drive gear - replace?

T

timdhawk

Member
Well, I'm not that well versed in transmissions so I apologize if this is a dumb question.
Do I need to replace my main drive gear since it has half a tooth broken off? All other teeth are good.
 

Attachments

  • 100_2246.jpg
    100_2246.jpg
    61 KB · Views: 170
timdhawk said:
Well, I'm not that well versed in transmissions so I apologize if this is a dumb question.
Do I need to replace my main drive gear since it has half a tooth broken off? All other teeth are good.
Click to expand...
YES! YES! YES! The gear has been compromised and will, without question, come apart further.
 
its not to bad right now but its going to get a lot worse and pretty fast, if it loses another tooth and it falls in the teeth of the cluster things are going to get bad real fast, as others have said, replace it and the cluster gear if it has any chipped teeth
 
I probably should pull my trans next winter. When I changed all the fluids upon first getting my 36 Fordoor in 2011 a piece of gear came out of the trans. I get a little grind when shifting to 2nd periodically......sometimes to 3rd and sometimes back to 1st at a stoplight. A good winter project I guess.
 
Bruce, I checked the free play, it was ok. It doesn't grind on every shift, I'd say about 25% of the time. Thanks for your input.
 
Worry worry worry,,, yes it may break apart some more, but the important thing here is " TOOTH COUNT " ,, count the teeth on the input gear and match the new one to it, yes it do make a differance, with some of the bright people here on the barn, responding and no one said to count the teeth ... go figure ....OLD....BILL
 
Replace the bearing, as well. If it has seals on both sides, as some do, remove the tin on the inside face before installation.
 
Talked a lot with Mac Vanpelt. Found out the teeth in mine were 29 and 15 rather than
the "normal" 28 and 16... (49 Merc 3 speed w/ OD). I will be replacing with a 15 tooth MDG and keeping the 29 tooth cluster gear.

If bearing is good w/o any grabbing, grinding or free play should I still replace it? How do you know if they are bad if they aren't "obviously" bad?

Also, fill the new kid in... what's the "Rule of 44"?
 
You must log in or register to reply here.
Back
Top