Join Date: Jul 2008
Location: Virginia Beach, VA
I would definitely look at upgrading to an overdrive unit while it's out. You'll need the crossmember, cooling lines, flexplate, shifter linkage, throttle valve cable (Lokar), carb adapter maybe for the TV cable connection (Lokar), block/inspection plate, and probably more that I'm not thinking of. Check out one of the AOD conversion kits at CJPonyParts. Not for purchase, but to get an idea of the parts required. You might need a new slip yoke and driveshaft too, but maybe not if your C4 yoke is good to go, and you won't know about the driveshaft until it's in there.
I ended up choosing the T5 install on mine. Haven't done it yet though. Have all the parts, just waiting to get back to my car. I just read about too many issues with the clunkiness and unreliability of the AOD's, and issues with the throttle valve setup. I read many good reviews about them too though, so to each their own. The cost ended up being about the same depending on how thrifty you get.
Not sure about the exhaust.
Painless Wiring Harness
Front/Rear Power Disc Brakes (SSBC)