My Low Cab Forward has a doghouse that makes for great access but still had to separate the tranny to get them out. I did not try to remove the top of the trans because I didn't think it would give the clearance that was needed.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy