1978 Cadillac Fleetwood Flywheels
Keep Your 1978 Cadillac Fleetwood in Top Shape with Quality Flywheels
Whether you’re repairing or upgrading your Flywheel, using high-quality parts is key to keeping your 1978 Cadillac Fleetwood looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Flywheels and Flexplates and Flywheel Shims. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 1978 Cadillac Fleetwood Flywheel at Advance Auto Parts is around $153.49, with a range that starts at $29.99 and goes up to $276.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Flywheel Shim and SFI Flexplate:68-84 Cad 368-500 166T: In start at just $29.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Flywheel, don’t forget to check out other key components like Clutch Bellcranks and Clutch Discs. At Advance Auto Parts, we’re here to help you keep your 1978 Cadillac Fleetwood in peak condition, inside and out.
Find Your Specific 1978 Cadillac Fleetwood Flywheels
Looking for the perfect Flywheel for your 1978 Cadillac Fleetwood? You’re in the right place. Below, you’ll find links to various types of Flywheels that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Flywheels, ensuring durability and a precise fit for your Cadillac Fleetwood. Whether you’re driving a 1978 model or another popular model year like
1987,
1988,
1989,
1990,
1992,
1993,
1994,
1995, and
1996, we’ve got you covered. Purchasing Flywheels from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Flywheels that fit your vehicle.
Essential 1978 Cadillac Fleetwood Flywheels
ATP – Flywheel Shim (Part No.GS-3)
from
$31.99
ATP Flywheel Shims install easily restoring machined manual transmission flywheels back to the proper height. On automatic transmissions the shim takes up excessive clearance caused by engine crankshaft endplay or by installing a rebuilt torque converter or rebuilt front pump.
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ATP – Flywheel Shim (Part No.GS-8)
from
$29.99
ATP Flywheel Shims install easily restoring machined manual transmission flywheels back to the proper height. On automatic transmissions the shim takes up excessive clearance caused by engine crankshaft endplay or by installing a rebuilt torque converter or rebuilt front pump.
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ATP – ATP Automatic Transmission Flex Plate (Part No.Z-165)
from
$70.99
Vehicles with automatic transmissions have a flex plate. Flex plates connect the engine and transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion and contraction of a flex plate over time can result cracks and/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel and contain the correct bolt hole spacing and ring gear teeth just like the original part to ensure long life and durability
Product Features:
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Product Features:
- Balanced to factory specs
- Fit and function like the original parts
- Restores normal operation
Lakewood – Power Train (Part No.RM-925)
from
$204.99
Power Train
Hays – SFI Flexplate:68-84 Cad 368-500 166T: In (Part No.14-010)
from
$276.99
Hays heavy-duty flexplates for high performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and today’s high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays Flexplate handles the force. These H.D. flexplates are supplied with a ring gear that is securely welded in place and feature dual bolt patterns for flexibility in adapting to multiple transmission style torque converters. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.
Product Features:
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Product Features:
- All applications for flexplates are SFI 29.1 Certified
- Available in Externally and Internally Balanced options
- Most flexplates feature Zinc Dichromate Plated finish for superior corrosion resistance and good looks
- Heavy- Duty design utilized thicker than stock steel plate enabling to withstand the stress of high-stall converters and high-RPM engines
- More applications now available for Buick, Cadillac, Chevy, Ford, Mopar, Oldsmobile and Pontiac Engine applications
- Gas and Diesel Truck applications coming soon!
ATP – Automatic Transmission Flex Plate (Part No.Z-249)
from
$103.99
Vehicles with automatic transmissions have a flex plate. The flex plates connect the engine and transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion and contraction of a flex plate over time can result cracks and/or shearing of the flex plate. A damaged flex plate can create serious and expensive damage. Broken flex plates cannot be repaired, they must be replaced. Pioneer Flex Plates are made of high-quality steel and contain the correct bolt hole spacing and ring gear teeth just like the original part to ensure long life and durability.
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ATP – Automatic Transmission Flex Plate (Part No.Z-188)
from
$69.99
Vehicles with automatic transmissions have a flex plate. Flex plates connect the engine and transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion and contraction of a flex plate over time can result cracks and/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel and contain the correct bolt hole spacing and ring gear teeth just like the original part to ensure long life and durability
Product Features:
See More
Product Features:
- Balanced to factory specs
- Fit and function like the original parts
- Restores normal operation
Lakewood – Power Train (Part No.RM-930)
from
$243.99
Power Train
B & M – Flexplate, 168 Tooth 86-94 Chevrolet Small Block (Part No.20239)
from
$213.99
As performance levels increase, an O.E. style flexplate just won’t cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance flexplate designed for 1986 to 1994 GM (externally balanced) 4.3L V6 and GM small block V8 engines with one piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5 inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953. Compatible with Powerglide, TH350, TH400 and TH700R4 automatic transmissions.
Product Features:
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Product Features:
- NHRA/IHRA Legal For All Classes
- Includes SFI Certification Sticker
- Ideal For Street Applications
- To Extreme Duty Racing
- To High RPM Use
ATP – Automatic Transmission Flex Plate (Part No.Z-120)
from
$97.99
Vehicles with automatic transmissions have a flex plate. Flex plates connect the engine and transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion and contraction of a flex plate over time can result cracks and/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel and contain the correct bolt hole spacing and ring gear teeth just like the original part to ensure long life and durability
Product Features:
See More
Product Features:
- Balanced to factory specs
- Fit and function like the original parts
- Restores normal operation
ATP – Automatic Transmission Flex Plate (Part No.Z-151)
from
$53.99
Vehicles with automatic transmissions have a flex plate. The flex plates connects the engine and transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion and contraction of a flex plate over time can result cracks and/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel and contain the correct bolt hole spacing and ring gear teeth just like the original part to ensure long life and durability
Product Features:
See More
Product Features:
- Balanced to factory specs
- Fit and function like the original parts
- Restores normal operation
Popular 1978 Cadillac Fleetwood Flywheels Categories
Most Popular Flywheels and Flexplate for 1978 Cadillac Fleetwoods
Enhance your 1978 Cadillac Fleetwood with this popular Flywheels and Flexplate we have in stock, for $276.99.
Hays – SFI Flexplate:68-84 Cad 368-500 166T: In (Part No.14-010)
from
$276.99
Hays heavy-duty flexplates for high performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and today’s high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays Flexplate handles the force. These H.D. flexplates are supplied with a ring gear that is securely welded in place and feature dual bolt patterns for flexibility in adapting to multiple transmission style torque converters. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.
Product Features:
See More
Product Features:
- All applications for flexplates are SFI 29.1 Certified
- Available in Externally and Internally Balanced options
- Most flexplates feature Zinc Dichromate Plated finish for superior corrosion resistance and good looks
- Heavy- Duty design utilized thicker than stock steel plate enabling to withstand the stress of high-stall converters and high-RPM engines
- More applications now available for Buick, Cadillac, Chevy, Ford, Mopar, Oldsmobile and Pontiac Engine applications
- Gas and Diesel Truck applications coming soon!
Best-Selling 1978 Cadillac Fleetwood Flywheel Shim
Upgrade your Fleetwood with our best-selling Flywheel Shim.
ATP – Flywheel Shim (Part No.GS-8)
from
$29.99
ATP Flywheel Shims install easily restoring machined manual transmission flywheels back to the proper height. On automatic transmissions the shim takes up excessive clearance caused by engine crankshaft endplay or by installing a rebuilt torque converter or rebuilt front pump.
See More
FAQs for 1978 Cadillac Fleetwood Flywheels
What are the best-selling Flywheels for 1978 Cadillac Fleetwoods?
Out of 2 Flywheels that fit 1978 Cadillac Fleetwoods, the following parts are the top sellers:
- Flywheel Shim (10860864) – $29.99
- SFI Flexplate:68-84 Cad 368-500 166T: In (12247361) – $276.99
What’s the price range for 1978 Cadillac Fleetwood Flywheels?
The prices of Flywheels for the 1978 Cadillac Fleetwood range from $29.99 up to $276.99 for the most premium parts.
What is the average price of a Flywheel for a 1978 Cadillac Fleetwood?
The average price for Flywheels for the 1978 Cadillac Fleetwood is $153.49. Keep in mind the variety of part types within our Flywheel category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Flywheels for other Cadillac Fleetwood model years?
What are the cheapest Flywheels for my 1978 Cadillac Fleetwood?
The cheapest 1978 Cadillac Fleetwood Flywheels we carry are:
- Flywheel Shim (10860864) – $29.99
- SFI Flexplate:68-84 Cad 368-500 166T: In (12247361) – $276.99
Does Advance Auto Parts sell Flywheels for any other 1978 Cadillac models?
Yes. We stock Flywheels for 3 other popular 1978 Cadillac models. Some of the most popular are 1978 DeVille Flywheels, 1978 Eldorado Flywheels, 1978 Seville Flywheels, and 1978 Commercial Chassis Flywheels.
What types of Flywheels do you sell for my 1978 Cadillac Fleetwood?
As of 6/2/26, these are some of the most in-demand types of Flywheels for a 1978 Cadillac Fleetwood:
Can I get help with 1978 Cadillac Fleetwood Flywheel orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Flywheels and more.
What is your return policy for Cadillac Fleetwood Flywheels?
Advance Auto Parts keeps returns simple. For new Cadillac Fleetwood Flywheels and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.