9 ford cases aluminum thru-bolt this highly refined heavy duty unit has become the standard in virtually all pro stockers and has also proven to be exceptionally reliable in alcohol cars as well it weighs 11 lbs less than our nodular iron carrier the design and use of an ultra strong aircraft alloy that is 30 stronger than billet 6061-t6 makes this superior to nodular case strength other features of the mw thru-bolttm cases include special bolts that go clear through the center section that provide extra compressive strength and a completely captive pinion bearing housing billet aluminum caps billet steel adjusters pinion support 7/16 3/8 available stud kit and pilot bearing retainer are included 3.062 3.250 and 3.812 with grip-lock tm adjusters carrier bore sizes are available all thru bolt cases have clearance for 9-1/2 style gears 9-1/4 actual diameter fluid passage ports are pre drilled 57430 57440 57448 9 ford thru-bolt aluminum case .575.00 9 ford thru-bolt
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