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

More From This Category

Motive Gear Differential Bearing Kit, Koyo, For OLDSMOBILE 442 1964–1971, Kit

Motive Gear Differential Bearing Kit, Koyo, For OLDSMOBILE 442 1964–1971, Kit

$149.22

Sonnax Aluminum Tubing, Drive Shaft Tube, 3.50" x 72" long Each

Sonnax Aluminum Tubing, Drive Shaft Tube, 3.50" x 72" long Each

$419.22

Wilwood Bearing Cup, Starlite Hub, Inner, Race

Wilwood Bearing Cup, Starlite Hub, Inner, Race

$20.04

Motive Gear Gear Install Kit, For Chrysler 7.25, Kit

Motive Gear Gear Install Kit, For Chrysler 7.25, Kit

$15.63

MANLEY Connecting Rod Pin Bushing, Bronze, .904 in. OD, .820 in. ID, .845 in. Length, Each

MANLEY Connecting Rod Pin Bushing, Bronze, .904 in. OD, .820 in. ID, .845 in. Length, Each

$22.80

TCI 700R4/4L60E Hd Drum 87-97

TCI 700R4/4L60E Hd Drum 87-97

$827.69