not sure to go posi or spool at this time .i twisted an axle on the 8 3/4 and will building the dana,i already have a dana 60 hd narrowed with mosier ends and perches done in a jig.88 dakota street/strip 340 stroker 470 hp on motor plus a 100 hp shot of nitrous truck weighs 3400. i run drag radials.best et 6.77@101 with a 1.48 60ft.this is a street driven to the track.not a daily driver.i know if will push little turning etc,but is it really that bad with a spool?