Quote:
Originally Posted by RoadRaceJosh
The old overall high gear ratio was 2.51:1 (3.636*.69). The new overall high gear ratio 2.87*.84 is 2.41. So the engine spins 96% as fast as it used to assuming no slippage. That's darn close.
What I'm curious to see is how you took a 4x4 trans and put a tail housing on it.
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Yah, that was the fun part - In the end, I basically made a franken-tranny.
In May 2015, I was scratching my head at making the rear of the Jeep transmission work in the Magnum. After several days of brainstorming, I came up with the remarkably bright idea of swapping transmission parts with a Chrysler Crossfire manual transmission (which was supposedly also an NSG370). Of course, I wasn't completely sure. Using Chrysler parts manuals for both the Jeep and the Crossfire, I performed a parts comparison between the Jeep transmission I had and the Crossfire transmission, and found out that they share 95% of the same parts.
So, I bought a Crossfire manual transmission, and inspected both transmissions. It turned out that I needed a sleeve bearing. Apart from that, I could mix and match the Jeep and Crossfire transmissions. Also made installing a shifter much easier.
Here are some pictures:
Comparison of front case internals for JK NSG370 and ZH NSG370
Comparison of rear case internals for JK NSG370 and ZH NSG370
3.8L V6 case, with a new shift shaft sleeve bearing installed
Original shift shaft sleeve bearing, pulled with blind hole bearing puller
Should someone want to power their JK Wrangler with a Mercedes engine, they can use the below transmission. Obviously, not going to happen - will probably keep this transmission for spare parts.
JK/ZH Franken-tranny
The item that will make it possible for a V6 Magnum to have a manual transmission...
LX Franken-tranny
Modified transmission mount, showing two drilled and tapped holes
Transmission mount, installed
RH, looking forward
LH, looking forward, with clutch slave cylinder
Close-up of clutch slave cylinder and clutch hose
Rear view, showing transmission crossmember in "NAG1" configuration
