[200sx]

I've just started building a new frog and noticed they've changed the driveshaft design to standard dogbones. There is considerable binding at the centre part of movement. It's built as per the manual but with 1150 bearings in place of the plastic axle bushings. 2 o rings in the offside diff cup, 1 in the nearside and 1 in each axle cup.

Is this binding normal?