Compatible models:
Fit for GMC 1968-1981（with TH350 Automatic Transmission）
Fit for Chevrolet 1968-1981（with TH350 Automatic Transmission）
Fit for Cadillac 1968-1981（with TH350 Automatic Transmission）
Fit for Buick 1968-1981（with TH350 Automatic Transmission）
Fit for Oldsmobile 1968-1981（with TH350 Automatic Transmission）
Fit for Pontiac 1968-1981（with TH350 Automatic Transmission）

Double seal design:
Equipped with high-quality oil-resistant and high-temperature-resistant O-rings, which closely fit the interface
Effectively prevent oil leakage, isolate dust and moisture, and protect the interior of gearbox

Manufacturing of high-quality T6061 aluminum alloy:
CNC precision machining, surface oxidation treatment, excellent corrosion resistance and strength
Long-term use does not rust or deform, and the appearance is silvery and bright, which improves the texture of the engine compartment

Accurate adaptation and easy installation:
The size accurately matches the 7/8 inch (0.875 "–0.89") speedometer hole of TH350 gearbox
Direct replacement without tools or welding

Widely compatible with original models:
Can replace 25513247, A44774, 44774, 35227, 345215 and 35922

Perfect support for speedometer modification:
Whether upgrading the electronic speedometer, replacing the gearbox or repairing the aging seal
This closure plug is an indispensable leak-proof protection component

Packaging content
1 × O-ring speedometer closure plug (aluminum alloy, silver)

Installation tip:
It is recommended to clean the installation hole position before replacement to ensure that the O-ring is in place correctly