Green bearings & sure-grip center units

George R said

First, the axles. They're Moser axles that came in the car when I got it......

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I used Moser axles with greens back in mid 90's and I had to remove thrust block, not sure if Moser changed this, might be worth a call.

George R said

Second is the SG unit.... It's a cone style SG unit, 489 case, and the seller said the cones were remachined to make it work again...

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I've done this mod to a cone Suregrip and it worked fine for street use.

George R said

The manual states that pinion bearing preload should be 20-30 inch lbs of drag without the seal installed. If this thing has 5 inch lbs of drag FULLY ASSEMBLED I'd be lucky...

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If the original owner did not remove pinion (no need to if only swapping to Suregrip) then it may be okay. You can give it a good inspection once suregrip is removed.