In the 60 series forum, I've been preaching for a while that an 80 series box can be bolted onto a 60, yet I had not done it yet. Picked up an 80 box from @mel lowe at the Relic Run and am just now putting it on.
80 series box on the left, 60 series box on the right (no, I don't have that mixed up, yes, my 60 series box has an 80 series pitman arm on it). The 80 series box is about 1" longer towards the firewall and about 1/4" taller towards the hood, but she fits in the 60 just fine. It's hard to tell, but the 80 series box has a larger power piston, meaning it provides better steering assist.
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60 series box detail:
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80 series box detail:
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Now when installing, you need to make sure to install the steering shaft before the box gets bolted in or else there isn't enough room in the steering shaft to collapse far enough to get it on:. Also, you need to pry up on the fender a little bit to let the box rotate in:
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And there you have it. You can see that the bolts on top of the box straddle the lip of the fender. It's tight, but she fits without touching.
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Next up, ream new pitman arm, MC/prop valve replacement, hydroboost replacement, maybe run a new front brake line, install PS cooler, bleed brakes and steering system, then this round is over. Got some things in the works to get moonshine some more traction aiding devices this fall![]()
Going to upgrade to the 105 series shaft for those big meats?