The difference between Powerglide and the TH400 are the detents. The same shifter will work, but you may not be able to shift through all the gears yourself (put in 1st and go up). Mine works fine but I do believe it has the detents for a Powerglide. https://shiftworks.com/collections/...-firebird-factory-shifter-conversion-kit
There may also be handle differences.
Last edited by wovenweb; 09/22/1810:21 AM.
1968 400 Coupe, verdoro green, black vinyl top, auto 1969 GTO Judge coupe, Carousel Red, manual 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver), Fire Red, white top, auto 1972 Buick GS Stage 1, Royal Blue, black vinyl top, auto
