Seat frame dimensions?

[NO_H2O]

22" might fit, it may be a bit tight at the E-brake handle . I adapted some seats from a 2003 Celica GTS onto the bottom frames of the bug seats (to get the correct rise) with 1/8"x2" flat stock welded across the top of the bug bottom frame to come out to 18" and weld up with the bottom of the Celica seat frames (made to bolt to the floor and would have been too low) it came out just right. The new seats are 19" across and fit great. And I have double adjustment forward and aft.