transmission mount bolts

gergwheel

93 firebird/GN hybrid
Hey guys i lost a bolts that go into the trans from the tranny mount. anyone know what size bolts i need to get? i know they are about 1.5 inches long, but i need to know width and thread. I really dont wanna have to go to the parts store and buy 15 different types of bolts to find the right one. Thanks in advanced.
 
well i went to TSC and just grabbed a bunch of bolts ranging between 1/4 -1/2 inch, and the 5/16 seemed to fit good, these were all course thread.
 
gergwheel said:
well i went to TSC and just grabbed a bunch of bolts ranging between 1/4 -1/2 inch, and the 5/16 seemed to fit good, these were all course thread.

I am 99.5% positive it is supposed to be metric. unless you have some sort of morphadite.... (sp?) I wouldn't recommend putting the wrong one in... as this could strip out one time when you stomp on it and least expect it.... which could also break the driveshaft.

After thinking about it some.... M12 is correct... I was thinking about the factory driveshaft safety loop (at least that is what I called it). I had to install 3 new bolts in mine... three out of four were missing???

HTH
 
ok ill run to the parts store tomorrow and get the metric equalivent of a 5/16 bolt. Thanks for the info.
 
trans mount bolt

I just checked the mount holes on one of my 200-4r's and the bolt size
is 10MMx1.5MMx35MM. 35 MM is about 1 thread less than the diameter of
two dimes. :) It has enough length to go through a lockwasher, a flatwasher,
the mount, and fully engage the threads in the case.
 
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