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John's Car Transmission Crossmember/Mount


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Anyone have trouble getting the rubber mount to bolt to the crossmember. The wholes on mine are about 1/8th of an inch off, its just enough to keep one of the bolts from bolting in correctly. Just wondering if anyone had the same problem, i dont have a drill press and i imagine thats the only way you could drill steel that thick.

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See, then you did the right thing, if you grind off that "w" then the bolt will fit in the hole! Sorry about not adding anything to the tech discussion, but I couldn't resist.

 

For alignment issues, I usually get as big a punch as I can and stick it through the holes and use the brute force techique. However, it sounds like maybe Phantom's car, which was the prototype, was a little different that yours and so the holes don't line up.

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See, then you did the right thing, if you grind off that "w" then the bolt will fit in the hole! Sorry about not adding anything to the tech discussion, but I couldn't resist.

 

For alignment issues, I usually get as big a punch as I can and stick it through the holes and use the brute force techique. However, it sounds like maybe Phantom's car, which was the prototype, was a little different that yours and so the holes don't line up.

you mean the tolerances between Z's isnt spot on? hahaha

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Luckily i only work about 5 miles from Johns Cars, so i took it back and he found out that every one of them that he had on in stock were off. So he redrilled it for me while i was there, and it worked fine. Picked up a driveshaft while i was there, so shouldnt be too long before my car is running/moving.

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  • 2 months later...

I haven't found any alternatives and I was not too impressed by their mounts especially the trans. I do not like the idea of bolting in a flat bar into the floor of a 240. You can't really blame JCI for that since it is a "bolt on kit". I opted out to make my own witch requires much more effort and extensive welding. I am working on documentation of the swap (it's still work in progress). Just to give you an idea of my mounts I attached few pics of the progress. The first two show the location of the engine mounts in relation to the front crossmember. The next two pics are of the brackets that were welded to the frame rails to hold the engine mounts (It's actually a plate that was welded to two sides of the frame rail to reinforce the rails with a tab that the actual engine mounts bolts up to, the bar that goes across is actually part of the engine mount and its removable). Next picture is the start of the fabrication of the engine mount and the engine finally in on the newly fabricated engine mounts. It sits in about the same location as the JCI kit. The next few pics are of the trans mount. It uses more or less the same idea as the original trans mount. I removed the ears from the original mounts and fabricated a brace that I welded the original ears to. The new brace is located about 6 inches back from the original one and since the original one was not in the way of the trans I left it in for some added strength. The trans crossmember was fabricated to go between the mouts and it hangs at about the same hight as the frame rails.

alignment of  right engine mount_thumb.jpg

alignment of left engine mount_thumb.jpg

right engine mount support_thumb.jpg

left engine mount support_thumb.jpg

bridging the gap_thumb.jpg

enginein_thumb.jpg

10017_thumb.attach

10018_thumb.attach

10019_thumb.attach

10020_thumb.attach

brackets_thumb.jpg

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