Is it worth repairing or replacing the transmission on a 1981 GMC K2500?

As a general rule of thumb, a transmission replacement on a 1981 GMC K2500 (mid-size sedan segment, vehicle value roughly $2,500–$3,000) is usually worth it when the installed cost stays under about $1,250 — roughly 50% of what the vehicle is worth.

What years of GMC K2500 does a remanufactured or new transmission fit?

Based on vendor-verified fitment data across 144 listed transmissions, remanufactured and new transmissions for this model cover the 1980–2000 model years. Always confirm your exact VIN or engine/transmission code before ordering, since fitment can vary by submodel or engine.

1981 GMC K2500 Transmissions

Remanufactured transmissions that fit the 1981 GMC K2500. Each unit below is matched to this vehicle, warranty-backed, and shipped with freight quoted at checkout from Peak Powertrain.

Available Transmissions (3)

TH400 Remanufactured Automatic Transmission
Price
$2,552.00
Engine:
5.7L
Condition:
remanufactured
TH350 Remanufactured Automatic Transmission
Price
$0.00
Engine:
5.7L
Condition:
remanufactured
TH400 Remanufactured Automatic Transmission
Price
$0.00
Engine:
5.7L
Condition:
remanufactured

Other GMC K2500 Years

1995(1)
1994(2)
1993(4)
1988(1)
1985(1)
1982(1)
1981(1)

1981 GMC K2500 Transmissions

Available Transmissions (3)

TH400 Remanufactured Automatic Transmission

TH350 Remanufactured Automatic Transmission

TH400 Remanufactured Automatic Transmission

Other GMC K2500 Years

1981 GMC K2500 Transmission Market Context

Is replacing the transmission worth it?

Frequently Asked Questions