1966 GMC 3500 Differential Pinion Seals
Save up to 40% on original replacement 1966 GMC 3500 Differential Pinion Seals. Navigate our online catalogue to find Differential Pinion Seals and other parts designed specifically to fit a 1966 GMC 3500.






Differential Pinion Seal - Rear
$21.39
Limited Stock
Ships: in 5-6 Business Days
Pick-Up: in 5-6 Business Days
Pick-Up: in 5-6 Business Days
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
2.598 Shaft Diameter 3.481 Bore Diameter 3.486 Outside Diameter Seal 0.438 Width H110 Axle
2.598 Shaft Diameter 3.481 Bore Diameter 3.486 Outside Diameter Seal 0.438 Width H110 Axle



Differential Pinion Seal - Rear Outer
$26.14
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
with GMC H052, H072 Differential
with GMC H052, H072 Differential



Differential Pinion Seal - Front Outer
$40.63
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
Viton Type
Viton Type



Differential Pinion Seal - Front Outer
$40.63
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
with 8.5 (in) Ring Gear
with 8.5 (in) Ring Gear



Differential Pinion Seal - Front Outer
$40.63
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
with Spicer 44-5CFHD Axle
with Spicer 44-5CFHD Axle



Differential Pinion Seal - Front Outer
$40.63
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
with Spicer 44-5F Axle
with Spicer 44-5F Axle



Differential Pinion Seal - Rear Outer
$40.63
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
Viton Type
Viton Type



Differential Pinion Seal - Rear Outer
$40.63
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
with 8.5 (in) Ring Gear
with 8.5 (in) Ring Gear



Differential Pinion Seal - Rear Outer
$40.63
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
with Spicer 44-1 Axle
with Spicer 44-1 Axle



Differential Pinion Seal - Rear Outer
$22.59
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle Fitment Notes:
with 9.75 (in) Ring Gear with Spicer 60-1 Axle
with 9.75 (in) Ring Gear with Spicer 60-1 Axle