I just got a great deal on one of these, just the one I wanted.
I can't ID yours as the charts I've found don't have it. Here's a couple of sites that have charts but they don't show yours, as they didn't show mine either. kbstang from here ID'd mine from his Hollander manual.
Are these the trannys that have third gear replaced with an overdrive gear. I've read that they are not as strong as a regular toploader. However, my brother had a Mustang II (Cobra, blue w/white stripes) and pretty much beat it to death before donating it to a H.S. shop class, without any tranny problems.
Checked my manual again, the Rug-BP is listed as being a Ford 4 sp. overdrive used in 77-78 Granada's and Monarch's behind 200's, 250's and 302's.Think I have seen a few of these at swap meets over the years.
1967 S code GT Deluxe Coupe 65B
1966 Convertible 76B 289 4 speed
Descendent of Francois Seguin dit Laderoute,
Soldier Regiment d' Carignan, New France 1665-1668