29920 OMC Cobra upper gearcase, New GLM 21/18 gear ratio

Description

GLM Marine P/N 29920 Brand new, OMC Cobra upper gearcase. 21/18 gear ratio. For 3.0L Chevy 4 cylinder (1986-1989) and 5.0 Liter Ford 302 V8.

Unit is 100% brand new and comes installed with u-joints and the output drive shaft.

• Unit is 100% brand new and comes installed with u-joints and the output drive shaft.
• Can be used with SEI Cobra lower units
• 21/19 gear ratio for use with 4.3 liter 6 cylinder engine upper gearcase units.
• 21/17 gear ratio for use with 5.0 liter V8 engine upper gearcase
• 21/16 gear ratio for use with 5.7 liter V8 engine and Ford 5.8 liter V8 engine