Casting #10008979
General Motors Part Number 10008979 Bellhousing
Used OEM
Pictures and descriptions are from an original
used GM part.
Inside View
This housing has two starter "ears". One for
Buick engines (Passenger side), and one for
Pontiac or Oldsmobile engines.
Close Up View
This example is an A & G Body Bell, because
the fork ball stud is located in the lower position,
of the "Peanut" shaped stud boss.
Bottom View
Passenger Side View
Top View
Buick, Oldsmobile, and Pontiac engine bolt
pattern.
Drivers Side
This housing has provisions for a Z-bar bracket.
Casting Number
The casting number is located under the clutch
fork hole.
Applications
10008979
0.683 HOUSING, Clutch
79 X W/M.T. (M15) (Olds Parts Book)
Quick Reference
Material: Aluminum
Size: Size: 160 tooth and 166 tooth flywheels
Engine Bolt Pattern: Buick, Olds, Pontiac
Transmission Bolt Pattern: GM
Transmission to Bellhousing Threads: 1/2"-13
Center Hole Size: 4 5/8"
Ball Stud Threads: 13/16"-16
Clutch Fork Stud Position: 90 Degrees or Lowered
Fork Opening: 90 Degrees
Inspection Plate Bolt Threads: 5/16"-18
Face to Face Measurement: 6 5/16"
Clutch Release: Mechanical
Starter Mounted: No
Starter Nose: Dual
Z-bar Mount: Yes, two 3/8"16 threaded holes
Note: all measurements are approximate.
Disclaimer:
Factory correct applications are your responsibility. GM made part and part # changes with no rhyme but a reason (no production interruptions at any cost).
Application charts are for replacement parts that were available at the time of parts book printing.
My observations come from the parts I have in my collection or other reliable sources your parts may differ.
If Factory correctness is your goal, do more research, join car clubs,
forums and buy an assembly manual if one is available for your Project Car (you wont be sorry).
This is a fun and interesting part of the hobby!
Factory correct applications are your responsibility. GM made part and part # changes with no rhyme but a reason (no production interruptions at any cost).
Application charts are for replacement parts that were available at the time of parts book printing.
My observations come from the parts I have in my collection or other reliable sources your parts may differ.
If Factory correctness is your goal, do more research, join car clubs,
forums and buy an assembly manual if one is available for your Project Car (you wont be sorry).
This is a fun and interesting part of the hobby!
