PEM Standard Quick Change Gears - Set #12 Mobile Electronics They're offered in a variety

They're offered in a variety of heights to accommodate most any combination of carb and spacer

Adapter also has mounting holes to accept the ALL10574 Tire Wrapper Attachment (sold separately) to wrap tires after prepping

684" long pushrod set works perfectly with High Energy or Magnum rockers

2-1/2 in Hose

5 and 6 in Chevy V6

PEM Standard Quick Change Gears - Set #12 Mobile Electronics They're offered in a varietyProduct Description: Quick Change Gear Set Standard Set 12 10 Spline 4. 11 Ratio 4. 58 3. 68 4. 86 Ratio 5. 42 4. 36 Steel Sold Individually PEM Racing (Performance Engineering and Manufacturing) offers a wide selection of quick change gear sets, ring and pinion gears, differential cases, and other rear end components.