philly
solid fixture here in the forum
87vette81big said:The Ford 8.8 " is actually a pretty good rear.philly said:87vette81big said:The stock G body rear is a Dinky 7.5" ring gear with 26-spline axle shafts.
Just 350 ft/lbs of flywheel enginect orque will cause it to grenade apart.
Buick Grand National 8.5" rear is stronger but not enough still for this application.
12- bolt better but still marginal strength.
Dana 60 Rear the best option.
Need 4.56 gears to make a true street warrior normally aspirated most combos with 4500 stall.
If ypu have at least 440 cubic inches rear gearing becomes not so critical on the street.
Making 500 + ft/lbs. off idle to redline with mild cams .
or you could be a real rebel and save alot of money putting a ford 8.8 in it!
all the gm guys at once say NOOOOOOO!
Build with Strange 33-spline axles. C-clip elimanators.
Full Race spool. Rear diff cover brace.
Near copy cat of the Chevy 12-bolt Chevelle-Camaro rear
the 8.8 with 35 splines and stock fox platform suspension was good for low 8's at 155+ mph about 1000hp never broke it, 70-80 passes and one day the car hit a wall
considering you can get a good core for under 100 bucks at every u-pick junkyard in america, parts are cheap and plentiful to build up, and guys are running 7.0 and 7.1 on slicks at 200+mph i would argue that the weight savings alone vs a 9" or a dana 60 make the ford 8.8 THE best rear diff in the world