1981 GMC P3500 Performance Transmissions

Essential 1981 GMC P3500 Performance Transmissions

B & M – Shift Improver Kit (Part No.20261)

Shift Improver Kit

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$71.29
Shift Improver Kit 1988 to 1994 Chevrolet, Buick, Olds, Pontiac, GMC TH-400 (3L80) Application: 1988 to 1994 Chevrolet, Buick, Olds, Pontiac, GMC TH-400 (3L80) Recalibrate your automatic transmission for optimum performance and extended life! Select the m

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
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B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)

Transpak For 65-87 TH400 Transmission

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$141.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
  • Downshift At Any Speed
  • Great For Trailer Towing
  • For Heavy Loads Driving Downhill
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B & M – Transpak For 68-81 TH 350 Transmission (Part No.30228)

Transpak For 68-81 TH 350 Transmission

from

$141.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
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B & M – Transmission Kit, Master Overhaul Kit For TH400 (Part No.21041)

Transmission Kit, Master Overhaul Kit For TH400

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$409.99
These kits include all of the necessary components to rebuild your automatic transmission. OEM style gaskets included. Kits do not include overhaul instructions – please refer to factory shop manual for proper assembly procedures.

Product Features:
  • Complete High Perf. Or Racing Trans. Overhaul
  • Includes Only OEM Valvebody Gaskets
  • Instructions Not Included
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Mr. Gasket – A/Tdipstick (Part No.9704G)

A/Tdipstick

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$79.99
Billet aluminum handle with flexible braded steel tube mounts to the firewall. 29-3/4 inch long.

Product Features:
  • Braided Stainless Steel
  • Firewall Mounting
  • Includes Oil Fill Tube
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1981 GMC P3500 Performance Transmissions

Maybe you’re in the middle of a full rebuild of that 1981 GMC P3500. Maybe you just need a couple of Performance Transmissions. Either way, Advance Auto Parts has 4 different Performance Transmissions in our inventory ranging from $79.99 to $409.99. That means you can find the exact parts or products you need to keep that 1981 GMC P3500 running smoothly.

Performance Transmissions are only as good as their brand. We stock 2 different brands to make sure you have plenty of trusted parts to choose from for your 1981 GMC P3500. Mr. Gasket and B & M are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Performance Transmissions for your 1981 GMC P3500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Performance Transmissions to keep your 1981 GMC P3500 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Performance Transmissions Brands To Make Your 1981 GMC P3500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1981 GMC P3500 demands trusted brand parts and products to keep it running. Many trusted brands of Performance Transmissions make up Advance Auto Parts’ inventory, and all are ready to help make your P3500 the best it can be. Be sure to browse some of our top Performance Transmissions brands and parts.

FAQs for 1981 GMC P3500 Performance Transmissions

What are the most purchased Performance Transmissions for the 1981 GMC P3500?

Out of 4 Performance Transmissions for the 1981 GMC P3500, the most popular in our inventory are:
A/Tdipstick
from $79.99
This product is not rated
A/Tdipstick
Performance Transmission Dipstick Tubes
Transpak For 68-81 TH 350 Transmission
from $141.99
This product is not rated
Transpak For 68-81 TH 350 Transmission
Performance Transmission Shift Kits
Transpak For 65-87 TH400 Transmission
from $141.99
This product is not rated
Transpak For 65-87 TH400 Transmission
Performance Transmission Shift Kits