* Different bellhousing bolt patterns: The AW4 and 32RH have different bellhousing bolt patterns. This means you'll need an adapter plate or a new transmission bellhousing to mate the AW4 to your Wrangler's engine. Finding the correct adapter plate might require searching specialty parts suppliers.
* Different output shafts: The output shafts are different lengths and may require modifications to the driveshafts or transfer case. You might need new driveshafts or a custom-made driveshaft.
* Computer control: The AW4 is electronically controlled, while the 32RH might be electronically or mechanically controlled (depending on the engine and options). This means you might need to adapt the wiring harness to control the AW4's electronic components, potentially requiring a new transmission control module (TCM) or significant rewiring. This is often the most challenging aspect of the swap.
* Torque converter: The torque converter for the AW4 is different and will be needed for the swap.
* Mounts: The transmission mounts are likely different and might need to be modified or replaced to accommodate the AW4.
* Fluid lines: You'll need to adapt or replace the transmission fluid lines.
In short, while the swap is *possible*, it's a complex project requiring mechanical expertise, specialized tools, and potentially custom fabrication. It's not something a beginner should attempt. You'll need to source all the necessary parts, including the transmission itself, adapter plate (if needed), driveshaft(s), potentially a new TCM, and other related components. Consider the cost and labor involved before proceeding. You may also find that the overall cost and complexity outweigh the benefits.