Hi All,
Not been on here for a while so I thought I would drop in and start pestering again.
I have just got out into the garage again working on the Buick but I have an issue with the "more modern" family vehicle, the Bedford CF....
She is a 1979 2.3 slant Auto and she is slipping and bleeding fluid out of the 3L30/TH180 box.
I want to keep it Auto but I want to upgrade the box rather than replace it.
Can I use the GM180 as a drop in replacement?
My plan long term is to convert her to Rover power so a GM180 would be perfect as I would just swap the bellhousing back and voila!!!

Any clues how compatible these are?

Propshaft fitting the same?
Bellhousing mounting compatible?
Speedo drive would be electronic on the GM180 I guess?

I hope someone can point me in the right direction as I dont want to detract from working on the Buick for too long.