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box stock jk 4.5" grand national rules

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CHASSIS
  • JK 4.5” Cheetah 21 in stock configuration.
  • .047 ride height.
 
MOTOR
  • Hawk 7, Hawk Retro, Mid America Eagle or Mid America Eagle Retro.
 
GEARS
  • 10 or 11/ JK 38.
  • NO angled gears/pinions.
 
TIRES
  • Any JK tires.
  • Fronts must maintain .375 x .790 min.
  • NO coning or coating of front tires.
  • Can cut, true narrow tires.
  • 83 mm wide (3.25”).
 
AXLE & OILITES
  • JK axles.
  • JK non-adjustable oilites ONLY.
 
BODY
  • Any brand .010” Retro NASCAR body up to 1975 model.
  • Painted w/ 3 numbers.
  • Can reinforce body.
 
Any brand
  • Guide flag, lead wires or braid.
 
ONLY modifications allowed
  • Tape chassis.
  • Open motor bracket holes for better gear mesh (motor bracket must be present & complete).
  • May solder motor to original motor bracket.
  • May notch motor to clear axle.
 
IF IT IS NOT LISTED, IT IS NOT ALLOWED!!
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  • Home
  • Hotels Near By
  • Services/Fees
  • Schedule
  • 4" NASCAR, LMP & GTP Rules
  • 4" Retro NASCAR & DTM Rules
  • Womp Rules
  • Box Stock Mercury Wing Rules
  • Box Stock NASCAR Rules
  • Box Stock & Pro Indy Car Rules
  • Box Stock JK 4.5" Grand National Rules
  • Wing Car Rules
  • Crate & Super Dirt Late Model Rules
  • Drag Racing Rules
  • Whelen (Asphalt) Modified Rules
  • H&R Hardbody Rules
  • H&R Limited Sportsman Hardbody Rules
  • H&R Sportsman Hardbody Rules