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Old 10-07-2009, 09:27 PM   #1
RebuildRookie
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Transmision Rattle

I have driven my Jeep the last several days(thats more than the last year). I have a couple of rattles and shakes.

1) Found that I was missing a lug on the spare tire so I took it off until I can pick up a spare. Fixed that.

2) When I hit a small bump I feel and hear what seems to be the transmission rattling through the gear shifter. When I look underneath I see 2 bolts that are real close. Checked the torque and there good. Then I checked the bolt sitting by itself towards the driver side. I turn and turn and turn, then figured out it is stripped. I also can see a gap in the rubber bushing(located above the skid plate), I am sure that is not the way its suppose to be. What is the location of that bolt called? Side Crossmember?

How important is that 1 bolt?

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Old 10-08-2009, 07:47 AM   #2
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bumpity bump
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Old 10-08-2009, 09:14 AM   #3
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Originally Posted by RebuildRookie View Post
I have driven my Jeep the last several days(thats more than the last year). I have a couple of rattles and shakes.

1) Found that I was missing a lug on the spare tire so I took it off until I can pick up a spare. Fixed that.

2) When I hit a small bump I feel and hear what seems to be the transmission rattling through the gear shifter. When I look underneath I see 2 bolts that are real close. Checked the torque and there good. Then I checked the bolt sitting by itself towards the driver side. I turn and turn and turn, then figured out it is stripped. I also can see a gap in the rubber bushing(located above the skid plate), I am sure that is not the way its suppose to be. What is the location of that bolt called? Side Crossmember?

How important is that 1 bolt?
There is a gap in the insulator stud bushings to allow some movement. The insulator stud prevents rotational stress on the tranny cushion/mount. Here is an illustration that should help you see how everything should be. The AX-5 in this illustration doesn't show the insulator stud, but it goes in exactly as depicted with the AX-15.
tranny-mount.jpg 

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Old 10-08-2009, 10:14 AM   #4
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Thats what I was looking for. On mine there is a gap between the top insulator and the top nut. shown on the left of the pic noted with the B. Its about a quarter inch gap.
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Old 11-05-2009, 08:48 AM   #5
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Has anyone ever replaced the insulator bolt and if so how hard would it be. Would it be like changing the transmission mount?

here are some pics of the Insulator bolt its the bolt on the right

Bottom view


Top View
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Old 11-05-2009, 09:39 AM   #6
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It's a cakewalk. Use a boxed end wrench on the nut at the top of stud (in the 2nd picture) and a socket on the lower end. It doesn't matter which nut starts coming off first, just take off whichever one wants to come off. Then remove the 2 nuts (in the 1st pic) from the transmission mount stud. Support the transmission with a jack & remove the 3 skid plate bolts on the driver's side & loosen the other 3 on the passenger side and let the skid hang down and replace the stud and/or bushings.

If you're replacing the mount (I would suggest doing so, they're cheap enough!) then go ahead & remove all 6 skid plate bolts for easier access.

Reassemble in reverse order & enjoy the ice cold adult beverage of you choice (no wine coolers though!) and rejoice in your manly-ness!

Max
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Old 11-05-2009, 09:46 AM   #7
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Thanks Max, you busted my cherry with your first post to one of my threads. I have entertained the thought of installing a new transmission mount since I would be under there anyways. I have alread started spraying PB on the skid and transmission mount bolts along with the insulator bolt nuts. Believe me, no wine coolers, its whiskey drinking weather.

One more thing, AX5 and AX15 Transmission mounts are different correct or incorrect? I am thinking about doing a motor/tranny swap in the next year. Dont want to buy 2 mounts if I dont need to.
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Old 11-05-2009, 09:55 AM   #8
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Thanks Max, you busted my cherry with your first post to one of my threads. I have entertained the thought of installing a new transmission mount since I would be under there anyways. I have alread started spraying PB on the skid and transmission mount bolts along with the insulator bolt nuts. Believe me, no wine coolers, its whiskey drinking weather.

One more thing, AX5 and AX15 Transmission mounts are different correct or incorrect? I am thinking about doing a motor/tranny swap in the next year. Dont want to buy 2 mounts if I dont need to.
They all show the same part number for the mount, '87-'95 regardless of engine, 2.5L, 4.0L, & 4.2L at Morris 4X4.

Morris 4x4 Center-Transmission Mount


Max
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Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
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Old 11-05-2009, 10:39 AM   #9
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thanks Max, just ordered it. Should be here next week and I will do it all at once.
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Old 11-05-2009, 01:23 PM   #10
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I called them to verify it had everything and they said no and that I needed this one because it had everything I needed.
Morris 4x4 Center-Transmission Mount (Black)&
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Old 11-18-2009, 08:07 AM   #11
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Changed out the transmission mount and the insulator(torque bolt). Actually pretty easy all-in-all.

??? I am getting a vibration at start off in the clutch pedal (after changing the mount), any suggestions on that.
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Old 11-18-2009, 08:42 AM   #12
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The new poly mount is probably transferring a vibration that was there all along.

Typically, a vibration when first taking off is usually the result of having an irregular surface on the flywheel and/or pressure plate surfaces, and is often referred to as "shuddering" by those in the business.

Vehicles that display these symptoms have usually had their clutches submitted to high slippage/high frictional heat conditions that are most often associated with inexperienced drivers, or drivers with poor driving habits who "slip" the clutch to get a smoother take-off. The slippage causes LOTS of frictional heat (think brake pads, a fine example of generating frictional heat!) which in turn causes "hot spots" on the flywheel & pressure plate surfaces. Clutch replacement (often done because the clutch is damaged & not worn out!) will eliminate the problem because the pressure plate is replaced & the flywheel is usually re-surfaced.

But that is not ALWAYS the case. The 2 thread links below both exhibited shuddering symptoms typical of the conditions listed above. But the real cause was that the bellhousing bolts had loosened up. read the threads & check your own bellhousing bolts. You might possibly be surprised!

http://www.jeepforum.com/forum/f12/jerry-jeepsolots-saga-792861/

http://www.jeepforum.com/forum/f12/bellhousing-bolt-epidemic-811063/

Max
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Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
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Old 11-18-2009, 09:14 AM   #13
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or drivers with poor driving habits who "slip" the clutch to get a smoother take-off.

Max
Well I've never met you personnely but, you have described me to a "T". I am going to check the links.

Thanks Max (its to early in the morning for )
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Old 11-24-2009, 08:30 AM   #14
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O.K. I am officially an idiot, while changing my oil last night I took a look at the transmission mount and realized that I installed it backwards, hump to the front. Going to change it and see if it helps with the vibes
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