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Thread: Mtx75 synchros said bye bye Reply to Thread
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Topic Review (Newest First)
03-18-2014 12:13 PM
Highball116 I have 181,000 on my MTX-75 with no issues. To the young gentleman who lashed out on double clutching, matching gear speeds before shifting will indeed relieve the synchronizers of the friction, and they will last longer. The better alternative, as mentioned, is to manage RPM responsibly so that all of this discussion is moot.

Toby
03-18-2014 11:33 AM
ranger024x4 nice!

fwiw, I had 223k on my original 5 speed trans in my escort. no issues at all!
03-18-2014 11:26 AM
Tjrommel Just an update... Ford is covering the slider, gear dog's and synchro due to a factory defect, the synchro had a Crack towards the inside where it indexes on the gear dogs.
02-20-2014 10:09 AM
cheap sleeper Anyone who has any experience with mtx75s should be well aware of 3rd gear syncro woes. Obviously, since they are a super-common problem, I wouldn't let others make you feel like you caused it. 3rd gear especially has always been the mtx75s problem (among other things like chatter of the t.o. bearing and not liking cold weather.) Noone's insurance, including your own, will pay for internal tranny issues, as they are no dummies and won't let you attribute that to any wreck you have been in. Your options are: skip 3rd gear when driving (like I did for 2 years), buy a used tranny that has low miles, or bravely open up the tranny and replace the syncros.

I will agree with sailor that you should probably flush the tranny a couple of times. Not only would that expel grinded bits, but it could help 'free up' the syncros a bit.
02-19-2014 06:51 PM
gondorian My third gear synchro started wearing out this winter. But the trans has well over 200k on it.
02-17-2014 06:19 PM
Tjrommel Should I make a claim through their insurance?
02-17-2014 06:19 PM
Tjrommel In my defense, I'm not sure if you remember but... My car has had 22k I'm damage done to it. November 3rd Drunk dude hit me crushed radiator and basically a whole new body. December 8th, the day I got it back somebody rear ended me (there was a 36mph difference in our speeds...). I had a soft spot, I should have been an ass and made them total my car but I couldn't force their hand. A month later, the 7th of January we had 3 days of - 20-30 degree weather which is when third gear didn't want to go in at 65-70mph (which puts revs at about 4500) call it abuse if you wish but I don't entirely think I am to blame. When I do abuse my car (quite often as you know) I never go into third hard, first and second are where I play. I don't see how my actions could have ruined third. And it is only synchro as when I match input and output shafts it engages perfectly downshifting. I have 0 grind what so ever up shifting from second
02-17-2014 12:50 AM
sailor Easy, he admitted to messing up.

Double clutching can reduce wear on the synchro's, if you NEED to do it you're probably dropping to too low a gear. Forcing it in when the speed difference is too great for the synchro's can wear them out. Hopefully the OP didn't damage the gear dogs enough to make it start popping out of gear. Now he needs to double clutch every time into third.

Changing the trans. lube a time or two to get out most of the carnage would be a good idea, at the price of Ford "Honey" for the trans. the lesson will be reinforced enough.
02-16-2014 11:59 PM
dyn085 Double clutching is not needing in a synchronized transmission. It is quite literally exactly what the synchros are there for. I guess you don't understand the purpose of double-clutching or synchros?

Not doing something that is not required to be done does not lead to broken parts. Abusing cars for no reason, otoh, does. Learn to drive better and your parts will last longer.
02-16-2014 10:29 PM
Tjrommel I've got 22k. I may have killed by not double clutching in to third from high way speeds (I do that every time to slow down and make some noise lol.
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