possibly problem with trz rear mount and shifting? help

phantomspeed

Member
:
mazdaspeed 3 2009
hey guys i just installed the trz rear motor mount (poly) and now that i have when i try to power shift to 3rd its grinds it happened the whole way home i checked the torque when i got home everything was good torqued to 73 ft-lbs . the stock mount didnt even do this and scince it didnt happen every shift before i installed the mount it leads me to believe that it isnt the synchros . Any ideas ?
 
also it doesnt seem to do it with just a normal driving shift but when i try and give it the nails it does it every time, i also am at about 27,000 miles do you think maybee a fluid change will help.
 
yea i will give that a try and see how it goes also with this mount is it normal for it to vibrate like it dies leaving first when u decel from 4th & 5th
 
also i could just be over worrying but there is so much noise now with the mount and i dont mean vibration but noise i am now hearing the lsd whine that ive read about in othe threads but it isnt when turning i hear it just while driving once again is this normal with this mount
 
how many miles u have it on the mount? usually it took about 500miles to break it in. also what bushing u have?? stiffer bushing u will feel more vibration inside the car....
 
yea update the drive to work today didnt grind the gear once but i wasnt trying to shift hard so well so how it progress all in all though i love this mount
 
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