Part Description	Part #	Estimated Retail Price
Pinion bearing	21610	$32
Detent	27720	$55
Screws	22375, 22366, 22373	$15
Gaskets	33960, 33970, 31171	$15
Seal	86620	$5
Guide	12961	$5
Nuts	21180	$5
Washers	21490	$5
Bearing housing	27770	$78
Shims	23590	$5
Thrust washer	21645	$7
Thrust bearing	16330	$26
Pinion and forward gear (original OMC set)	22623	$283
Anodes (3 units)	12774, 12776, 12737	$38
Plug	21731	$6
Forward gear bearing	22910	$54
Spring	11052	$5
Prop shaft (1-3/16" dia.)	22414	$306
Reverse gear bearing	22870	$16
Bearing	11410	$10
Oil seal	85130	$10

# 28820R OMC stern drive Cobra rebuilt lower gear case

#28820 - Large Gear Housing	Year
3.0L 4-cylinder Chevy	1990 - 1993
4.3L V6	1986 - 1993
5.0L Chevy/Ford	1986 - 1993
5.7L Chevy	1986 - 1993
5.8L Chevy	1989 - 1993

#28910 - Small Gear Housing	Year
2.3L 4-cylinder Ford	1987 - 1990
3.0L 4-cylinder Chevy	1986 - 1989

#28820R Rebuilt lower gear case large gear housing with GLM aftermarket gears $1395.79 *after trade in* #28820R Remanufactured Cobra stern drive lower gear case with original OMC gears  $1595.79 *after trade in*

#28910R Rebuilt small housing Cobra lower gear case $1195.79 *after trade in*

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