3rd gear synchro

[caster]

Took the '90 535 to my Indy and he tells me the 3rd gear syhcro is going and no fix other than replacing the tranny. Not what I expected to hear. Then he says a used 5 speed is about $1000, plus another $450 labor.
Anyone has experince with replacing their 5sp gearbox, does this make sense?? Car has 133k miles, redline thruout. :(

[Unregistered]

Why is there "no other fix"? Can't they just replace the synchro ring, a $20 part? I have done my older BMW transmissions several times, but I am not familiar with that particular unit. I don't have my service manual handy to see how complex the job is. It still won't be cheap to take apart but should be a lot less than $1500.

Dennis

[Jeff N.]

The Getrag tranny is a press-fit type. You press the case halves together and the shafts into the bearings. Basically, if you open the case up, you need to replace all the bearings.

Jeff

[Warren N.CA]

whatever you now use (probably MTL) to something else.- Maybe RedLine D4 ATF, or some other good tranny lube. Many people tell of fixing such marginal problems with a lube change.




Took the '90 535 to my Indy and he tells me the 3rd gear syhcro is going and no fix other than replacing the tranny. Not what I expected to hear. Then he says a used 5 speed is about $1000, plus another $450 labor.
Anyone has experince with replacing their 5sp gearbox, does this make sense?? Car has 133k miles, redline thruout. :(