1‑800‑243‑8355
Help
Contact Us
Free Shipping
Shipping Information
Manufacturer Rebates
How To Order
Payment Options
Return Policy
FAQs
Emissions Regulations
Gift Card Balance
Sponsorship Opportunities
Company
Request Catalog
OPGI Blog
Hours & Location
History
Frequent Buyer Points
Volume Discounts
Price Match Guarantee
Kit Swap Savings
Reviews
Careers
Clearance Sale
Archives
My Account
My Orders
My Wish List
As seen on
1978
Grand Prix
My Garage
39
View Garage
1978
Pontiac
Grand Prix
Shop Parts
Filter Search
1958
GMC
Blue Chip
Shop Parts
Filter Search
1985
Pontiac
Grand Prix
Shop Parts
Filter Search
1940
Cadillac
Series 75
Shop Parts
Filter Search
1961
Pontiac
Bonneville
Shop Parts
Filter Search
2004
Chevrolet
Monte Carlo
Shop Parts
Filter Search
1977
GMC
K35/K3500
Shop Parts
Filter Search
1964
GMC
C35/C3500
Shop Parts
Filter Search
1986
Chevrolet
Monte Carlo
Shop Parts
Filter Search
1971
Pontiac
Catalina
Shop Parts
Filter Search
1972
Pontiac
Grand Prix
Shop Parts
Filter Search
1962
Cadillac
Series 75
Shop Parts
Filter Search
1977
Pontiac
Bonneville
Shop Parts
Filter Search
1962
Cadillac
Series 62
Shop Parts
Filter Search
2000
Chevrolet
Monte Carlo
Shop Parts
Filter Search
1945
Cadillac
Series 62
Shop Parts
Filter Search
1966
Chevrolet
Chevelle
Shop Parts
Filter Search
1981
Chevrolet
Monte Carlo
Shop Parts
Filter Search
1971
Buick
Skylark
Shop Parts
Filter Search
1979
GMC
K35/K3500
Shop Parts
Filter Search
1985
Chevrolet
Monte Carlo
Shop Parts
Filter Search
1963
Buick
Skylark
Shop Parts
Filter Search
1959
Pontiac
Catalina
Shop Parts
Filter Search
1969
GMC
C35/C3500
Shop Parts
Filter Search
1972
GMC
K15/K1500
Shop Parts
Filter Search
1987
GMC
Jimmy
Shop Parts
Filter Search
1967
Chevrolet
El Camino
Shop Parts
Filter Search
1968
Chevrolet
Chevelle
Shop Parts
Filter Search
1975
Pontiac
Bonneville
Shop Parts
Filter Search
1971
Chevrolet
Monte Carlo
Shop Parts
Filter Search
1938
Cadillac
Series 62
Shop Parts
Filter Search
1952
GMC
New Design
Shop Parts
Filter Search
1969
Pontiac
Catalina
Shop Parts
Filter Search
1968
Chevrolet
Corvair
Shop Parts
Filter Search
1968
Chevrolet
Corvair
Shop Parts
Filter Search
1976
GMC
K25/K2500
Shop Parts
Filter Search
1964
Chevrolet
Corvair
Shop Parts
Filter Search
1988
Chevrolet
Monte Carlo
Shop Parts
Filter Search
1984
Chevrolet
Monte Carlo
Shop Parts
Filter Search
Shop All Parts
+ Add Vehicle
Catalogs
Cart
Have a Question?
Ask our Experts
Mon‑Fri 8:00‑4:30 PT
Experts Offline
Interior
Door Handles & Hardware
Door & Window Handles, Door Hinges
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gauges & Accessories
Gauges, Panels, Kits, Sending Units
Interior Accessories
Armrests, Carpet, Flooring, Consoles, Dash, Door, Glove Box
Keys & Locks
Hardware, Keys, Locks, Sets, & Switches
Mirrors & Hardware
Mirrors, Mounting Hardware
Exterior
Decals
Decals, Body Stripes, Misc
Exhaust
Mufflers, Headers, Pipes, Mainfolds, Tips, Kits
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gaskets & Seals
Adhesives, Gaskets, Seals, Weatherstripping
Keys & Locks
Hardware, Keys, Locks, Sets, & Switches
Lamps & Lenses
Headlights, Lamps, Lenses, Bulbs, Hardware
Mirrors & Hardware
Mirrors, Mounting Hardware
Wheels & Accessories
Lug Nuts, Bolts, Studs, Wheels, Accessories
Body Parts & Trim
Door Handles & Hardware
Door & Window Handles, Door Hinges
Mirrors & Hardware
Mirrors, Mounting Hardware
Moldings
Front End, Rear, Side, Window, Hardware
Sheet Metal & Body Panels
Doors, Hoods, Fenders, Quarter, Trunk, Floor, Armrest
Trunk Panels & Accessories
Mats, Dividers, Hardware, Accessories
Window
Glass, Motors, Regulators, Hardware
Suspension & Brakes
Brake Systems
Disc, Drum, Master Cylinders, Boosters, Pumps, Valves
Chassis & Suspension
Bushings, Mounts, Chassis, Steering, Suspension
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Engine & Drivetrain
Air & Fuel Delivery
Air Cleaners, Filters, Carburetors, Pumps, Tanks, Manifolds
Cooling & Heating
Air Conditioning, Controls, Fans, Motors, Cores, Radiators, Thermostats, Heaters, Pumps, Ducts
Decals
Decals, Body Stripes, Misc
Drivetrain
Differentials, Driveshafts, Chaines, Shifters, Transmissions, Bearings, Seals
Engines & Components
Belts, Pulleys, Camshafts, Heads, Oiling Systems, Engines
Exhaust
Mufflers, Headers, Pipes, Mainfolds, Tips, Kits
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Fittings & Hoses
Fittings, Clamps, Brackets, Hoses, Lines, Plugs, Tubing, Valves
Gaskets & Seals
Adhesives, Gaskets, Seals, Weatherstripping
Ignition & Electrical
Alternators, Wiring, Horns, Starters, Distributors
Oils, Fluids & Sealer
Oils, Fluids, Grease, Lubricants, Grease, Cleaners, Sealers, Glues
Windshield Washer
Bottles, Pumps, Arms, Motors, Switches, Hardware
Audio & Electric
Gauges & Accessories
Gauges, Panels, Kits, Sending Units
Ignition & Electrical
Alternators, Wiring, Horns, Starters, Distributors
Mobile Electronics
Antennas, Radios, Speakers, GPS, iPod, Bluetooth
Tools & More
Books
Owners Manuals, Service Manuals, History
Car Care & Paint
Covers, Cleaners, Waxes, Polishes, Paints, Coatings, Dyes, Markers
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gifts & Apparel
Shirts, Jackets, Hats, Plates, Garage Decor
Tools & Shop Equipment
Brake, Electrical, Engine, Fuel, Hand, Suspension, Wheel, Tire
×
We use cookies to ensure that we give you the best experience on our website. Click
here
for more information.
Got It
Ends Tonight!
Save up to 20% on Restoration - use code: USA250
Home
Grand Prix
1978
Drivetrain
1978 Pontiac Grand Prix
Drivetrain
Categories
Clutch Pedals
Differential & Rear-End Components
Driveshafts, Drive Chains, Couplers & Yokes
Shifters
Transmissions
Wheel/Axle Bearings & Seals
1978 Pontiac Grand Prix
Drivetrain
Filters
12
24
36
48
60
96
120
Relevance
Best Selling
A-Z ↓
Z-A ↑
Highest Price ↑
Lowest Price ↓
Newest Arrivals
×
Product Type
Aftermarket
92
Performance
271
Restoration
55
Part Type
Accelerator Cable
1
Accessory Switch
2
Auto Trans Assembly
7
Auto Trans Dipstick
10
Auto Trans Filter Kit
1
Auto Trans Flexplate
5
Auto Trans Kickdown Cable
3
Auto Trans Kickdown Cable Bracket
1
Auto Trans Lock-Up Torque Converter Control
2
Auto Trans Lock-Up Torque Converter Switch
1
Auto Trans Mount
1
Auto Trans Oil Cooler Assembly
1
Auto Trans Shift Handle
4
Auto Trans Shift Lever
5
Auto Trans Shift Lever Assembly
8
Auto Trans Shift Lever Boot
2
Auto Trans Shift Lever Knob
2
Auto Trans Shift Linkage Clip
1
Auto Trans Shift Rod Joint
1
Auto Trans Shifter Cable
6
Auto Trans Shifter Linkage
1
Auto Trans Shifter Plate
3
Auto Trans Torque Converter
3
Auto Trans Torque Converter Dust Cover
2
Auto/Manual Trans Shift Boot
3
Automatic Dual Clutch Transmission Mount
1
Automatic Transmission Adapter Plate Kit
2
Automatic Transmission Cable Bracket
2
Automatic Transmission Case Locator Pin
1
Automatic Transmission Differential Cover Gasket
2
Automatic Transmission Harness Clip
1
Automatic Transmission Oil Cooler Coolant Line Fitting
1
Automatic Transmission Range Selector Lever
1
Automatic Transmission Shift Detent Plate
1
Automatic Transmission Shift Lever Bushing
1
Automatic Transmission Shift Lever Detent
1
Automatic Transmission Shift Lever Handle Cover
1
Automatic Transmission Shifter Cable Clip
1
Automatic Transmission Torque Converter Cover
2
Axle Shaft
5
Axle Shaft Assembly
3
Axle Yoke
1
Bolt
2
Bolt Kit
32
Chassis Wiring Harness Clip
1
Clutch Bellcrank
1
Clutch Bellcrank Boot
1
Clutch Bellcrank Clip
1
Clutch Control Linkage Push Rod
1
Clutch Flywheel
21
Clutch Flywheel Assembly
6
Clutch Flywheel Bolt Set
10
Clutch Flywheel Counterweight
2
Clutch Flywheel Cover
1
Clutch Flywheel Ring Gear Spacer
1
Clutch Fork
1
Clutch Fork Ball Stud
2
Clutch Fork Boot
1
Clutch Kit
16
Clutch Lever
1
Clutch Master Cylinder
1
Clutch Pedal
1
Clutch Pedal Bushing
2
Clutch Pilot Bearing
3
Clutch Pressure Plate and Disc Set
5
Clutch Pressure Plate Bolt
1
Clutch Reservoir Bracket Kit
2
Differential
6
Differential Cover
13
Differential Cover Bolt
1
Differential End Yoke
1
Differential Oil Additive
1
Differential Rebuild Kit
1
Differential Ring and Pinion
10
Drive Axle Assembly
7
Drive Shaft Loop
1
Drive Shaft Transmission Slip Yoke
2
Driven Axle Complete Axle Assembly
13
Engine Control Module
1
Engine Crankshaft Main Bearing Cap Stud
1
Engine Mount
1
Engine Oil Pan
1
Firewall Plate
4
Gear Oil
2
Grommet
1
HVAC Heater Hose Bracket
1
Manual Trans Assembly
8
Manual Trans Shift Knob
23
Manual Trans Shift Lever
6
Manual Trans Shifter Lever Kit
20
Manual Transmission Shifter Assembly
2
Multi Purpose Grease
1
Shift Lever Adapter
2
Speedometer Cable
3
Speedometer Cable Clip
1
Speedometer Drive Gear
4
Stud
1
Suspension Multi Purpose Bump Stop
13
Suspension Trailing Arm
1
Throttle Assist
1
Throttle Return Spring
1
Torque Converter Hardware
1
Transmission Bell Housing
4
Transmission Control Module
1
Transmission Crossmember
9
Transmission Crossmember Brace
1
Transmission Drop Bracket
2
Transmission Fluid Additive
1
Transmission Mount
2
Transmission Oil Pan
25
Wheel Bearing Grease
1
Category
Clutch Pedals
18
Differential & Rear-End Components
91
Driveshafts, Drive Chains, Couplers & Yokes
12
Shifters
99
Transmissions
234
Wheel/Axle Bearings & Seals
3
Price
$1 - $100
195
$101 - $200
46
$201 - $300
26
$301 - $400
54
$401 - up
97
New Arrival
New
14
Brand
AC Delco
2
American Powertrain
11
ARP
19
Auburn Gear
4
B&M
34
CPP
2
Derale
1
Detroit Speed
1
Eaton
2
Eddie Motorsports
9
Edelbrock
2
FiTech
1
G Force Performance
16
General Motors
1
GM Performance Parts
6
Hays Inc
8
Holley
4
Hotchkis
1
Hurst Performance
12
ididit
2
Lakewood
2
Lokar
31
McLeod
46
Milodon
5
Moser Engineering
29
NRG
11
Painless Performance
2
Performance by OPGI
5
PML
10
Prothane
15
RESTOPARTS
4
TA Performance
3
TCI
7
TREMEC
6
USA Standard
5
Review Rating
ooooo
ooooo
55
ooooo
ooooo
20
ooooo
ooooo
5
ooooo
ooooo
1
ooooo
ooooo
3
Not Yet Reviewed
334
NEW
Differential Cover Set, Chrome, GM 12-Bolt w/Drain (SET)
ooooo
ooooo
$23.99
NEW
Differential Cover, Chevrolet 10-Bolt, 8.5" & 8.6", Finned
3 Finish Options
ooooo
ooooo
From
$75.99
Moser Engineering
Axle Assembly, Moser, 78-88 G-Body, C-Clip, 3.42, 7/16x1-3/4", Wilwood Disc
12 Differential/Brakes Options
ooooo
ooooo
From
$5,099.99
Bolt Set, Pan Cover, Allen Head, TH350/TH400 (SET)
7 Finish Options
ooooo
ooooo
From
$13.99
NEW
Differential Cover, Chevy 12-Bolt, 8.875", Finned
2 Finish Options
ooooo
ooooo
From
$75.99
NEW
Differential Cover Set, Chrome, GM 10-Bolt, No Drain (SET)
ooooo
ooooo
$23.99
Bolt Set, PG/TH350/TH400/700R4 Bell Housing, 12-Point (SET)
ooooo
ooooo
$32.99
TA Performance
Stud Kit, Bearing Cap, 3" Long (SET)
ooooo
ooooo
$34.99
Lokar
Kickdown Kit, Black AL Fitting
30 Style/Color Options
ooooo
ooooo
From
$142.99
Moser Engineering
Axle Assmbly, Moser, 1978-87 G-Body, C-Clip, 3.08, 7/16x1-3/4", Moser Disc
3 Differential Options
ooooo
ooooo
From
$4,649.99
ARP
Bolt Set, Torque Converter, ARP, PG/TH350/TH400, w/1/2" Tabs, 1.250" UHL (SET)
ooooo
ooooo
$15.99
Bolt Set, Pan Cover, Allen Head, 700-R4/4L60E (SET)
5 Finish Options
ooooo
ooooo
From
$41.99
ARP
Bolt Set, Flywheel, ARP, Chevrolet V6/305-502 V8, 12 PT Pro Series (SET)
ooooo
ooooo
$18.99
USA Standard
Ring & Pinion Set, USA Standard, GM 10-Bolt 7.5"/7.6", 4.11 Ratio, Thick Gear (SET)
ooooo
ooooo
$351.99
USA Standard
Ring & Pinion Set, USA Standard, GM 10-Bolt 7.5"/7.6", 3.73 Ratio (SET)
ooooo
ooooo
$334.99
Moser Engineering
Axle Set, Rear, Moser, 1978-88 G-Body, 10-Bolt 7.5"/7.625", 26-Spline, 28-7/16" (SET)
2 Stud Thread Options
ooooo
ooooo
$459.99
ARP
Bolt Set, Flexplate, ARP, LS Engine, 12 PT Pro Series (SET)
ooooo
ooooo
$27.99
ARP
Bolt Set, Pressure Plate, LS Engine, 10"/11" Clutch, M10 x 1.50 (SET)
2 Head Type Options
ooooo
ooooo
From
$17.99
USA Standard
Ring & Pinion Set, USA Standard, GM 10-Bolt 7.5"/7.6", 4.11 Ratio (SET)
ooooo
ooooo
$397.99
ARP
Bolt Set, Torque Converter, ARP, GM 200/700/4L60/4L80, M10 x 1.5, 6-Piece (SET)
ooooo
ooooo
$26.99
ARP
Bolt Set, Flexplate, ARP, Chevrolet 265-454 V8, External Balance, 12 PT (SET)
ooooo
ooooo
$17.99
USA Standard
Ring & Pinion Set, USA Standard, GM 10-Bolt 7.5"/7.6", 3.42 Ratio, Thick Gear (SET)
ooooo
ooooo
$397.99
NEW
Differential Cover, Chevy 12-Bolt, 8.875", Finned w/Hardware and Gasket
2 Finish Options
ooooo
ooooo
From
$85.99
SALE
Clip, "C" Shaped, Transmission Control
ooooo
ooooo
$4.32
Save an extra 20%
Use
USA250
at checkout
Page 15 of 18 - 421 Items
«
13
14
15
16
17
»
Page 15 of 18 - 421 Items
«
13
14
15
16
17
»
Free Ground Shipping
Free Ground Shipping on orders over $299 in the contiguous United States.
Shop Clearance
Save up to 55% on huge clearance deals on hundreds of items.
Earn Points for Free Parts
Earn points for every dollar you spend with OPGI’s Frequent Buyer Rewards Program.
Price Match Guarantee
We’ll price match any currently advertised retail price offered by a retail competitor.
Select Your Vehicle
Find parts that fit your vehicle
GM Cars
GM Trucks
Make
Model
Year
Go