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Old 06-02-2009, 04:29 PM   #1
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Mounting engine mount brackets...

Hey all -

I won't rest until I get past this engine/tranny install stage...

Okay, so I ordered engine mount brackets from JWJeep.com. They should be here by the weekend. The engine mounts on my chassis were for a 4-cylinder and the engine I am dropping in is a 6-cyl. I am installing the new engine mount brackets in the place they need to be to fit my engine. Here's my concern: The transmission mount is pretty much set and so is the length of the drive shaft. So, if I am off by even a 1/4" on the placement of these brackets, when I go to install my drive shaft, it either won't fit in OR it'll fit with a gap between itself and the yoke it's going in to.

I am stressing over getting the bracket sin EXACTLY the right spot so my drive shaft will fit exactly. Is there ANY "play" in the set-up, if I am off by a bit? How can I make sure I am welding these things in the exact right spot? Where should I take measurements from? I do still have the old, rotted chassis - should I take measurements from it and transfer them to the new one?

I am almost inclined to hoist the engine/tranny (they are together) in there, attach the tranny to it's mount, attach the drive shaft - then mark on the frame where I should weld the engine mount brackets. IS this my best course? Am I thinking too much?

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Old 06-02-2009, 05:25 PM   #2
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Quote:
Originally Posted by 1992wranglersahara View Post
I am almost inclined to hoist the engine/tranny (they are together) in there, attach the tranny to it's mount, attach the drive shaft - then mark on the frame where I should weld the engine mount brackets. IS this my best course? Am I thinking too much?
There's your answer. You are thinking too much about it. Just bolt the tranny to the tranny mount, put the frame brackets on the motor mounts and set the motor in place. Make sure it's sitting properly on the frame rails with everything straight and level. Then burn in the mounts.

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Old 06-02-2009, 05:54 PM   #3
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There's your answer. You are thinking too much about it. Just bolt the tranny to the tranny mount, put the frame brackets on the motor mounts and set the motor in place. Make sure it's sitting properly on the frame rails with everything straight and level. Then burn in the mounts.
i agree, use the trans member as your guide or better yet add driveshafts front and rear and you can tweek it for best fit.
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Old 06-02-2009, 07:40 PM   #4
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Also, don't just mark the frame for bracket location.

Leave them attached to the engine, until the welder tacks them up real tight. Then if you feel generous, you can yank the engine/trans/T-case out of his way.

He might even be OK with leaving it there.
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