what else should i save???

[Grant Bowker]

If you're thinking of the SM420, it is dimensionally longer/larger than the original transmission, making the already short intermediate shaft really tiny. I thought about it because the SM420 should be more than up to the torque/power of the 216/235/261 unless they are hot rodded to the extreme, but I gave up because of the added length, maybe I'm just chicken.