Speedometer Drive Adapter Nut for Chevy & GMC Trucks (QU30091)

Torque King
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  • QU30065 Speedometer Seal for 1971-1990 GM NP205 Transfer Cases Torque King 4x4
  • QU30055 O-Ring for Threaded Speedometer Connections Torque King 4x4
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QU30091 Speedometer Drive Adapter Nut for most 1971-1990 Chevy and GMC New Process NP205 Transfer Cases and 1973-1979 NP203 Transfer Cases. QU30091 also fits most GM SM465 and similar 4x2 manual transmissions. QU30091 Nut is an assembly that also includes  QU30065 Speedometer Output Seal and QU30055 Housing O-Ring. Made in Montana.

While supplies last: QU30091U Used Speedometer Adapter Nut

Need More Info? Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!

Dan the Gear Man® Tech Notes:

Most with New Process NP205 Transfer Cases: 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990
With New Process NP203 Transfer Cases: 1973, 1974, 1975, 1976, 1977, 1978, 1979

Also fits most GM SM465 and similar 4x2 manual transmissions


Tools, New Parts, and Torque King® products in a kit or sold individually are warranted to the original purchaser to be free from defects in materials and workmanship for a period of one year from the date of sale. Certain Products, such as Warn® Hubs may be covered by additional manufacturer's warranties. THERE ARE NO OTHER WARRANTIES, EITHER EXPRESS OR IMPLIED, WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF. THE EXCLUSIVE REMEDIES FOR A WARRANTY CLAIM HEREUNDER IS RETURN OF THE GOODS TO TORQUE KING 4X4 FOR REPAIR, REPLACEMENT, OR REPAYMENT OF THE PURCHASE PRICE. ALL CLAIMS FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES ARE HEREBY EXCLUDED FROM THIS LIMITED WARRANTY.

Product Reviews

  • 5

    This works.

    Rick Benveniste on Apr 27, 2023

    Replaced my factory speedometer drive adapter with this and no more leaking. My factory unit did not have a provision for a seal like this one, comes with the inner seal installed.

  • 5

    adapter nut

    dean on Aug 16, 2022

    worked great and had all the seals in it, no leaks yet

  • 5

    arrived assembled with 0 ring and seal

    Sainna P Mummert on Jun 27, 2022

    No more oil leak

  • 5

    Speedometer Drive Adapter Nut

    Rick on Jun 19, 2018

    Installed the adapter nut to my leaky transfer case and no more leaks. No fitment issues. Works perfectly.

  • 5

    Perfect fit and function

    Henry Salazar on Mar 20, 2018

    This is a perfect replacement and the only known source for this part. I installed over the weekend and the leaks are gone! Thanks Torque King!!!

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More info can be found at the link below.