1. Make your own mounts
2. Yes a 700r4 is alot longer than your stock transmission. So that means a shorter rear and a longer front driveshaft.
3. To save some green, S-10's and Blazers had 231's mounted on 700r4's so you dont have to buy an adapter.
First: SBC + 700R4 is the SAME LENGHT than your 4.0 I6 + AX15 (or NV3550) which means you keep your actual drivelines.
Second: S-10's and Blazers never came with 231's. They came with NP233's which are different system. The inners are interchangeable but they are not 231's starting by the fact the 233 has a 5 bolt pattern and a 231 has a 6 bolt pattern.
You may be able to make them work. But I would be apprehensive. They may need to be modified. The TJ frame rails have a bit more of a roll to them to clear the front axle than a YJ or Cj.
there are other ways available but the cradle is by far the easiest and best. yah it sucks if you gotta drop the pan.. but being albe to use the stock gm mounts rawks.
The crossmember/cradle ties both frame rails togeather allowing the engine to use a stock style GM rubber mount to support it. I think the main reason is to be able to use the Stock GM replacement rubbers that way you are not searching for some random mount.
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