I believe truck v6 and small block v8 bellhousings are the same pattern but I've never seen a A999 behind a v6. As far as I know v6's found in cars from the era the A999's were made were front wheel drive vehicles and they had a transaxle setup. The only rear wheel drive v6's were trucks starting in the late 80's and they used A500 transmissions. I'm not 100% sure on this but am reasonably sure I'm right. If someone else knows different please correct me.