Check the listing for details. NP833 4 SPEED 30 SPLINED BOOTED REAR OIL SEAL. Condition: New. Listed at 15.00 USD. NP 833 4 speed Transmission Booted Rear Oil Seal for the tranny with the 30 splined main shaft output. Here at Garage Motorsports we stock one of the largest selections of manual 3 speed OD, 4 speed Muncie, T-10 & AMC T-10 transmissions new and rebuilt and one of the largest selections of new and used parts on the West Coast. Please see my other auction items and give us a call at 360-735-0753 or email if there are any other parts you may need or if we can help you in any way with your manual transmission needs. International Buyers – Please Note: 1st class international mail takes anywhere from 10 days to about 1 month delivery time. Sometimes items get hung up in customs. If you would like quicker shipping, you must request an express shipping quote.