My guess is that lingth is the main issue. If you have theAOD now measure distance from Bellhousing to mounting point for Cable and compare to your C4. If distance is shorter, you should be OK. If you have any slack, Route so it is removed. I installed one with out taking out all of the slack and it flexed out too close to exhost pipe melting cover. This fused and made it useless. $70.00 waisted plus $6.50 gear eaten.
Here's the deal...... If you don't need the speed sensor for a fuel injection system, just the speedo. The stock cable from the C4 plug right into the tranny. If you need the speed sensor for a computer, just pull the end off the cable and yank the end off one in the junkyard and stuff it on your cable. That's what I did when I put the Fuel injected 5.0/AOD in my 68 Cougar and I did the same thing to hook the MG speedo to the T-5(Ford Turbo 2.3/T-5), in my MG