Heavy Duty 3-4 Clutch Backing Plate Kit

Name: Heavy Duty 3-4 Clutch Backing Plate Kit
Brand: SONNAX
SKU: 852-74140-01K
Price: 155.77 USD
Availability: InStock

^$155⁷⁷

Ships on 09/10/2026

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GM 4L60, 4L60-E, 4L650-E, 4L70-E

Requires 1991-Up 3-4 Apply Ring #7

Reduces Backing Plate Flex for Increased Durability

Requires 1991 and later 3-4 apply ring stamped with number "7" measuring 3.671-3.682 in. in height.

Part TypeAutomatic Transmission Clutch Backing Plate

BrandSONNAX

Package Height1.3

Package Width5.5

Package Length7.1

Weight0.45 PG

Part CategoryReplacement Parts

Part FitmentSemi Universal

Vendor Part Number74140-01K

Package Qty1

Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations

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