I just recently done this on a '65 GS Skylark with a TH400 installed. The Skylark has definitely tighter confines than a Wildcat. Remove the 3 converter bolts. Take out two bolts & install longer ones then remove the rest of the bolts. Dipstick is held with one of the bolts. I had to remove the dipstick as it was the wrong one anyway. Unbolted the crossmember, left the mount attached. Remove the rear of the driveshaft & let it hang. Used a jack to hold up the trans. Pushed the trans. back enough to get a small block of wood between the trans. & engine. Didn't even have to remove cooling lines. Now remove the flexplate bolts & position flexplate to align with the index hole. For extra insurance, just in case I use a little bit of red Loctite on the bolts. Your done. On a lift should take no more than an hour or so.
I had the similar problem a couple of years ago on a 66 electra with a 401 with a totally rebuilt shaking engine...was the starter plate that was mounted wrong..should be hole against the drill mark in the crank did it all from the underside....we did take down the trans...but not needed regards stig
Stig, We had to reschedule the car to go to the shop, till wednesday. Odds are this is what we find, and should be a very simple fix..... keep in touch :TU:
Turns out one of the techs read some wrong figures on the crank and removed weight from it, hence the vibration. They pulled the engine and balanced the crank correctly. To compensate me for the hassles, they rebuilt my dual quad carbs, installed them on the engine, then tuned it for peak performance. It runs better than I could ever believe:TU:
