what size is bore size an od

Hello and thank you for your interest in the LFW137 flywheel by LuK. If I understand correctly you're asking for the ID where the pilot goes and the OD of the total flywheel? If so the ID for the pilot is 1.261 and the overall OD is 11.272 at the tip of the ring gear teeth.

What does " refer to Lb 194" regarding the slave release bearing mean??

I have no idea, I suggest you contact the seller.

Will this fit my 2002 6 cylinder 3.0 ranger?

No this flywheel fits 2.3 or 2.5 L Ford Ranger.

Will this fit 1991 manual Chevrolet 2500 350

I doubt it. I got it for a ford ranger with a 2.3 4 cyl

Deliver to Panama

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Schaeffler LuK LFW137 Flywheel, OEM Flywheel, LuK RepSet Clutch Replacement Parts

Schaeffler LuK LFW137 Flywheel, OEM Flywheel, LuK RepSet Clutch Replacement Parts

Product ID: 28764255

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Details

Material
Metal
Brand
LUK
Fit Type
Vehicle Fit
Vehicle Service Type
ATV Passenger
UPC
670774031984
Global Trade Identification Number

🔥Superior heat absorption

🔩Exact vehicle-specific fit

⚙️OEM precision engineering

Description

⚙️ Upgrade your clutch game with LuK – precision that drives confidence!

GUARANTEED PERFORMANCE - 100% functionally tested to exceed OEM standards—no guesswork, just reliability.
VEHICLE SPECIFIC FITMENT - Designed for a perfect bolt-in replacement across cars, trucks, SUVs, and more.
PRECISION OEM ENGINEERING - Crafted to meet exact vehicle specs for flawless clutch integration.
SMART REPLACEMENT STRATEGY - Avoid risky resurfacing; pair with LuK RepSet for hassle-free, long-lasting clutch upgrades.
UNMATCHED HEAT DISSIPATION - Premium metal construction maximizes heat sink capacity, extending clutch life.

The Schaeffler LuK LFW137 Flywheel is a premium OEM clutch replacement part engineered for a precise fit and superior performance across a wide range of vehicles. Built from high-grade metal for excellent heat absorption and durability, it is 100% functionally tested to meet strict OEM standards. Designed as a direct bolt-in replacement, it eliminates the risks of resurfacing and ensures extended clutch service life, making it the smart choice for professional-grade clutch repairs and upgrades.

Specifications

Material	Metal
Brand	LUK
Fit Type	Vehicle Specific Fit
Vehicle Service Type	ATV, Passenger Car, SUV, Truck, Van
UPC	670774031984
Global Trade Identification Number	00670774031984
Automotive Fit Type	Vehicle Specific Fit
Manufacturer	LuK
Item Weight	3.6 pounds
Product Dimensions	14.88 x 16.88 x 3.88 inches
Item model number	LFW137
Manufacturer Part Number	LFW137