LT1-LT4 Modifications 1993-97 Gen II Small Block V8

poly trans mounts

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Old Apr 18, 2007 | 12:44 PM
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Default poly trans mounts

I put a prothane mount in there and i am wondering what everyone is torquing the tranny mount nut to? I read its supposed to be 77 and well i tried that and it broke the stud on the tranny mount right in half. I torqued mine to 25 afterwards because thats what my old third gen's auto tranny's mount wanted, and it looks pretty much identical to this mount. I figure thats not right either though...
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Old Apr 18, 2007 | 01:28 PM
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i didnt know you had to be very specific with it, i just put it on there and tightened it down snug. however i am using a 6 dollar mount from autozone, so maybe the polys require a torque wrench
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Old Apr 18, 2007 | 01:45 PM
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yea i read this article..

http://www.installuniversity.com/ins...y_mount_m6.htm


77 ft lbs snapped the little pos stud they give you. I started browsing the threads since nothing came up on a search and found one that mentioned double nutting it so the stud will screw all the way into the mount first, THEN you torque it. The studs they give you are garbage...mines already looking like its bending a bit...
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Old Apr 18, 2007 | 01:57 PM
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Don't overcomplicate it...

"Tight" is tight enough. Never had an issue otherwise in the past 8 years.....
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Old Apr 18, 2007 | 09:38 PM
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Yea seriously lol, trying to put in a simple tranny mount and its turning into a fiasco. I think i got it fixed, they key is deff in making sure you double nut it off the car and tighten so the stud goes far into the mount, then bolt it to the car.
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