Cobra sterndrive *800 OMC parts *Mercruiser outdrive videos

T.C. Electronics/Marine (416) 751-7326 Home Page

OMC Parts *Electric shift outdrive lower gearcase

Rebuilt sterndrives years 1972 to 1977

  • Rebuilt lower gear case for years 1970 to 1977 (all engines)
  • Gear case comes with 1 year warranty
  • Rebuilt upper gear cases, see our upper page
  • 10 bolt or 8 bolt swivel housing available
  • OMC cable wire available
  • Electric Shift Gear Ratio Chart 1973 to 1977
  • New or rebuilt gear case contact our 24 hour gear case order line: (416) 751-7326

OMC stern drive shifter switch with wire
OMC stern drive shifter switch with wire

Shift switch available with drawings and photo installation help

electric shift
1970 to 1977 Rebuilt electric shift lower gear case $1199.95 *after trade in. $360 core deposit required.

outdrive bearing retainer repair

outdrive bearing
retainer repair

lower unit

Lower gear case repair for 10 and 8 bolt swivel housing models includes:
  • Replacing or repairing forward or reverse spring, new drive shaft bearing, new seals, pressure testing. Swivel housing is sand blasted and painted.
  • Lower vertical seals 2 units that are offset to land on a different position on shaft in case of previous drive shaft wear.
  • Prop shaft bearing retainer is machined to hold 3 seals that will locate in different position on the prop shaft.
  • Bearing retainer is then sand blasted and painted.
  • Additional parts and costs may be required for repair.
  • Note: broken clutch spring breaking on the gear face included with basic repair.
  • If how ever the clutch spring can not be repaired a used spring will be installed adding $55.00 to the cost of the basic repair.
Basic repair cost - $695.95

Zinc chromate and primer with a white epoxy paint for lower unit (if requested) - $129.89


The following may be required if your electric shift lower unit has run in salt water for periods of time :Drill old hole 13/64 in aluminum 3/4 inch deep. Tap hole with #5401-4 helicoil 1/4 -20 inch thread
Place loctite retaining compound #680 or #609 on helicoil to hold tread in place
Insert stainless steel coil and break off instalation tab on bottom. Cost of $17.95 per required helicoil.

omc exhaust housing
exhaust housing
OMC Stringer electric low propile exhaust housing

OMC Stringer electric low propile exhaust housing

Used OMC part for years 1970 to 1977 exhaust housing $139.29