Stuffin' guts

[500/600]

A switch pitch converter won't work in a regular trans or vice versa, the stator drive on the pump is different. The entire pump is different with a solenoid installed on the back of it that regular transmissions don't have. There is also a cup plug with a tiny orifice installed in the case behind the pump that is not in a regular transmission. I swapped all of these parts out of my transmission when I changed it back to regular operation. The converter is notably different when you look at the transmission side of the converter in that is has a second set of spot welds in a smaller diameter that a regular converter does not have. I bought mine from Poston Enterprises in the late '90s. It has a high stall of 4000rpm when 'on', and a low stall of 1400rpm when 'off'. You can google pictures of the difference in the pumps to see what you have.

 

[CopperNick]

"A genuine, functional THM400 from BOP is worth some $ to the right person ." Yep, it would be, except that no such animal exists hereabouts and this BOP, even though the t-oil appears to be a nice deep ruby red in color, had been sitting outside at the mercy of the elements for a prolonged period of time before I brought it in out of the cold. I would not in any way classify it as user ready as I am positive it will need a new pump assembly and front input shaft as both of these items are badly eroded as well as coated in sand and crud.

Right now I am still in paint mode and have to re-tarp a greenhouse while the weather is calm as well. Be few days before I can uncover the elephant and see if it still has a tag or not.


Nick