December 20, 201510 yr Can the synchro actually be replaced or is the job much more extensive than a swap-out? Does the trans. have to be pulled? Is it a huge hassle to fix the synchro or is it just better to replace the entire trans.? I'm not mechanical so I'd have to hire it out. Thanks for any replies. Subarule
December 20, 201510 yr The whole transmission has to be pulled and split open. If you get another used transmission that you don't know the history behind you could have the same problem or even gears out.
December 20, 201510 yr Is it crunching into 3rd gear? Learn to double clutch and you'll never have to worry about tired synchos again. If you haven't already done it, change the gear oil. You may be surprised at the difference fresh gear oil makes.
December 20, 201510 yr I'll point this out again... If it's grinding going into a gear, it is NOT the synchro that has failed. It IS making the noise, but it's not the bad part. The part that has failed is the blocking ring that sits inside the synchro and is a separate, serviceable part. As you shift, the synchro pushes the blocking ring, which is cone shaped, onto the mating surface of the gear you're shifting into. The ring has ridges in it that grab the free wheeling gear slowing it down to the shaft speed then the tapered teeth of the synchro allow it to mesh with the gear, locking it to the shaft. +1 for both turbosubarubrat & 987687. If it's a 4spd, 3rd gear failure is common.
December 24, 201510 yr I have synchro out in 2nd gear. All it requires is holding the clutch in for about 1/2 second longer than it if was working perfectly. Double clutching is not required.
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