REFUNDABLE $125 CORE DEPOSIT IS INCLUDED IN SHIPPING. Your deposit is refunded when we receive your core. Please read all instructions below.
 
USA ORDERS: $20 Flat Rate Shipping + $125 REFUNDABLE Core Deposit = $145 Total Shipping

INTERNATIONAL ORDERS: Calculated Shipping + $125 REFUNDABLE Core Deposit = Total Shipping. For international orders, if ordering more than one unit, we'll send a separate invoice through eBay for core deposits for the additional units.

CADILLAC BUICK CHEVROLET OLDSMOBILE PONTIAC GMC
Years: 1981-1988
Replaces Part No. 20225150 and Coupling 20614175
*The same unit is used on both the driver's seat and passenger seat

FULLY REBUILT:  Proper Parts has re-engineered brand-new housings for these units and we recondition the internal parts. We've been building these seat transmissions since 2006.  Our new transmission housings are manufactured in the USA from extremely durable polyamide with fiberglass fill. The complete unit is assembled, tested, and shipped to you ready to be installed. It is Guaranteed for Life. 

IMPORTANT, PLEASE READ THIS: The power seat system is an antique. It is not an amusement park ride. It was NEVER designed for continuous use. Continuous use will overheat the bushings and lock or break the transmission. Move it to the position you like and leave it there. Do not repeatedly hit the end of the track going back and forth, and up and down. Unlike modern power seats that have current sensing, limit switches, and constant position monitoring, these systems do not even have a rubber cushion at the end of travel.

THIS IS A UNIT EXCHANGE:

After installing your new unit, ship your old unit (core) to Proper Parts to receive your core refund. Your purchase receipt must be enclosed to process your refund. 

Please do not ship your core until after you've finished installing the new one in order to avoid sending parts that you'll need to keep for installation.

Please return your core within 30 days.  After 45 days, a late fee of 15% will be charged.  Your core deposit will be refunded to your original payment method when we receive your core. 

WHAT IS AN ACCEPTABLE CORE?

The internal components are what is important. If the outer case is broken and in pieces, that is not important. We just need the internal parts. If you have any questions, please contact us in advance or send a photo. 

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Black, Red, and Yellow Driving Gear / Input Shaft

The 20225150 transmissions had a RED or YELLOW input shaft, not a black one. They used a white plastic coupler. They were mounted to the motor with a 1/8 inch aluminum spacer plate between the two.

The original housings were made of nylon. They were white when new but became brown and brittle over time, and many have disintegrated. Most failures are due to the housing breaking apart. There is no new OEM replacement available for this part. 

NEW COUPLING INCLUDED, replaces Part No. 20614175  Proper Parts has re-engineered an improved coupling design that ensures a smooth slip fit to the motor and transmission. The D-shaft openings are very accurate. We manufacture these couplings from a urethane chosen for its hardness and toughness while still having good flexibility. When the seat comes to the end of its track there is no cushion, and this coupling allows the motor to slow down gradually ensuring a longer life for all of the components involved. It is much better than the original.

INSTRUCTIONS TO SHIP YOUR CORE TO PROPER PARTS:

  • YOUR RECEIPT OR PACKING SLIP MUST BE ENCLOSED TO PROCESS YOUR REFUND.
  • SHIP TO: PROPER PARTS, 5725 HARRISON AVE, EXPORT PA 15632 USA.
  • YOU ARE RESPONSIBLE FOR RETURN SHIPPING.
  • EMAIL TRACKING # TO US THROUGH EBAY.

IF YOU HAVE ANY QUESTIONS, PLEASE CONTACT US.

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Founded in 2006, Proper Parts designs, prototypes, manufactures, and remanufactures high quality aftermarket auto parts for vintage Rolls-Royce, Bentley, Range Rover, General Motors, and AMC vehicles. With over 25 years of experience restoring Rolls-Royce and other classic cars, we have the troubleshooter's perspective and are always developing new parts. We aim to build "Better Than New."