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Old 11-08-2015, 06:09 PM
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Lame Brain Question Re. Tranny Mount

Yeah, I know. Search.

I did. I am not in a position to do much searching right now. I have come up with figures that disagree and am seeking a quick, accurate answer from someone with the FSM close at hand.

Tranny mount torque? I need specs for mount-to-tranny AND mount-to-skid plate.

I can only find mount-to-tranny info and have read 31 ft/lbs, 21 ft/lbs, 24 to 40 ft/lbs and 196 in/lbs. And that dog don't hunt. There is a correct number for each, but I am on my phone and cannot look it up very well. My FSM is in the trunk of my wife's car for some reason... 0_o

So which number (or range) is it? HELP!

And what are the four nuts to the skid plate supposed to be? Cannot find anything on that.

Currently the Crown replacement (yeah, I know, I will probably get the Mopar one with I have more cash on hand...) is bolted to the bottom bracket on the tranny @ 30 ft/lbs as a sort of "average" on all the misinformation I dug up earlier today. The mount is NOT bolted to the skid at this time as I am installing a 1" Brown Dog MML and a set of his excellent engine brackets tomorrow morning.

Jeep info:

2003 (with the late TJ larger "shovel" skid plate)
4.0L/NV3550

THANKS!

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Old 11-08-2015, 06:18 PM   #2
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I went with 30ft lbs on both the mount itself and the skidplate.

good luck with your motor mount lift. I did mine this weekend. sort of a pain. It helps to have two guys.

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Old 11-08-2015, 06:33 PM
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Quote:
Originally Posted by Loadedjeep View Post
I went with 30ft lbs on both the mount itself and the skidplate.

good luck with your motor mount lift. I did mine this weekend. sort of a pain. It helps to have two guys.
Thanks for the info and the encouragement! We are more like 1.5 guys, as my helper is my not-too-strong wife. But she runs a mean floor jack and can thread bolts into holes and such. Ought to be a non-horrible experience for us, though it will probably take twice as long as normal, heh, heh, heh...

I will watch for other answers, but 30 ft/lbs "felt" like it was a good bit less than what they were locked down with, and that was probably factory work. I am guessing the mount should be bolted to the tranny at like 40 and to the skid at like 25 or so. But 30 probably works fine. I hope...
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Old 11-08-2015, 07:43 PM   #4
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Support Cushion to Cross member nuts - 192 in. lbs.
Support Cushion to Bracket Nuts (manual) 55 ft. lbs.

This is for a 1999. Yours should be similar.

Or use 1 grunt on the skid nuts, and 2 grunts and a fart on the bracket ones....
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Old 11-08-2015, 09:15 PM
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Quote:
Originally Posted by Water Dog View Post
Support Cushion to Cross member nuts - 192 in. lbs.
Support Cushion to Bracket Nuts (manual) 55 ft. lbs.

This is for a 1999. Yours should be similar.

Or use 1 grunt on the skid nuts, and 2 grunts and a fart on the bracket ones....
Will it be the same if I have the "other" skid plate? Did the specs change? I am now near my FSM and will look it up, but I think I can manage a fart, 2 grunts and another fart. Thanks, Dennis!
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