4in x 1-1/2in | Bushings | Coupling | 1-1/2" x 1/2" | 1-1/2" x 3/4" | 1-1/2" x 3/8" | 1-1/4" x 1-1/2" | 1-1/4" | 2-1/2" | 3/4" x 1/8" | 4" x 1-1/2" | 5" x 4"