Re: ultramatic

Posted by HH56 On 2016/8/5 11:48:46

You didn't say what year but am assuming by your post name it is a 51. 55-6 pans had the dipstick port on the R front side of pan and diameter was about that 1 1/2 size but that is all. Definitely not 1/8 pipe thread. 50-54 regular Ultras did not have the dipstick but had a drain plug on the front lower. Anything else in front of trans would be above the pan on the bellhousing and was only plugs and caps for various ports.

Without seeing the item can't help much. If a earlier regular Ultra and it is on the pan wonder if someone tried to install a later pan with dipstick and found it wouldn't work so tried to plug the hole with something. If it is in one of the ports then it would not be stock. Some of those ports have considerable pressure which could be the reason anything not designed to go there is leaking.