74574-HD Heavy Duty Overrun Clutch Hub, 4L60/4L60-E/4L65-E/4L70-E

Name: 74574-HD Heavy Duty Overrun Clutch Hub, 4L60/4L60-E/4L65-E/4L70-E
Brand: SONNAX
SKU: 852-74574-HD
Price: 281.31 USD
Availability: InStock

^$281³¹

Ships on 09/14/2026

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4L60/4L60-E/4L65-E/4L70-E

Sonnax 74574-HD Features:
The overrun clutch hub found in GM 4L60 (700R4), 4L60E, 4L65E and 4L70E units is highly susceptible to cracking and breaking in applications such as autocross.
Stop hub failure in these popular performance units with Sonnax heavy duty overrun clutch hub 74574-HD, which features high strength steel and thicker material for trouble free performance when applying deceleration engine braking in D3, D2 or D1 ranges.
This hub is a direct replacement for ’95-later 4L60-E, 4L65-E, 4L70-E hubs and can be installed in a 4L60 (700-R4) when a 95-up sprag assembly is retrofitted.
2X Thicker than OE clutch hubs to prevent cracking and breaking in critical areas that engage the input sprag inner race
Manufactured from high-strength 4140 chromoly steel

Part TypeAutomatic Transmission Clutch Hub

BrandSONNAX

Package Height2.3

Package Width4.3

Package Length4.8

Weight0.66 PG

Part CategoryPerformance Parts

Part FitmentSemi Universal

Vendor Part Number74574-HD

Package Qty1

Package TypeEA

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

74574-HD Heavy Duty Overrun Clutch Hub, 4L60/4L60-E/4L65-E/4L70-E

Sonnax 74574-HD Features:

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