Dse 12.7:1 Ratio Power Steering Box :: Racecar Engineering Detroit Speed 12.7:1 Ratio Power Steering Box 090215DS Detroit Speed Detroit Speed 12.7:1 Ratio Power Steering Box 090215DS Detroit Speed 1964 1992 Chevrolet Detroit Speed 12.7 1 Ratio Power Steering Box Detroit Speed 12.7:1 Ratio Power Steering Box 1968 1991 Chevrolet GMC Detroit Speed 12.7:1 Ratio Power Steering Box 090215DS Detroit Speed. Detroit Speed has engineered a brand new, not rebuilt, steering box that provides the performance and feel you would expect from a late model performance car through "Detroit Tuned" rack and pinion valve technology, low friction gear design, and 12. 7: 1 quick ratio gearing. This new power steering box is lighter than the factory steering box. Your original power pitman arm may be used. All new steering gear unit, Not rebuilt DSE Steering Gear Outlet Fittings not included Improved steering feel due to low friction gear design Detroit Tuned precision rack and pinion valve technology Late model performance car feel Quick ratio 12. 7: 1 Original power pitman arm may be used Lighter than stock steering box A new 3 4 x 30 spline rag joint (3 1 4 OD) is available through Detroit Speed New O ring power steering hoses are needed Attributes: Brand Name: Detroit Speed Archived GTIN: 00090127816684 81813: Detroit Speed 3294145: 6 3294148: Steering Box 3602290: Yes 5865699: 3 4 in. x 30 Spline 5866045: 3 5866048: M18 x 1. 5 O Ring 5866050: M16 x 1. 5 O Ring Weight: 25. 1 Extended Information: Country of Origin: Emissions : Emissions Compliance Exempt Life Cycle Status: Available To Order Packing Information: Quantity of Each: 1 Package UOM: EA Dimension: 14 x 12 x 7 inches Weight: 29. 1 POUNDS