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Transmission Upgrades and Swaps - Square Body Trucks
## Overview Transmission upgrades represent one of the most impactful modifications for 1973-1987 GM Square Body trucks. Whether you're dealing with a worn-out original transmission or seeking improved performance and …
Fuel System Compatibility for TH400 and 700R4 Transmissions - Square Body Trucks
## Overview The fuel system compatibility between **TH400** and **700R4** transmissions in 1973-1987 GM Square Body trucks is a critical consideration for owners performing transmission swaps or rebuilds. While both …
Transmission Cooling Systems - Square Body Trucks
## Overview Proper transmission cooling is critical for the longevity and performance of automatic transmissions in 1973-1987 GM Square Body trucks. These vehicles came equipped with various automatic transmissions including …
Transmission-Specific Brake Considerations - Square Body Trucks
# Transmission-Specific Brake Considerations - Square Body Trucks ## Overview Transmission type significantly affects brake system requirements and performance characteristics in 1973-1987 GM Square Body trucks. The fundamental difference between …
Classic GM Truck Manual Transmission Options - Square Body Trucks
# Classic GM Truck Manual Transmission Options - Square Body Trucks ## Overview The 1973-1987 GM Square Body trucks offered several manual transmission options that varied significantly by year, model, …
700R4 Transmission Performance & Rebuild - Square Body Trucks
## Overview The 700R4 (Turbo Hydra-Matic 700R4) transmission was GM's first electronically controlled 4-speed automatic overdrive transmission, introduced in 1982 and used in Square Body trucks through 1987. This transmission …
Transmission Systems and Service - Square Body Trucks
# Transmission Systems and Service - Square Body Trucks ## Overview The transmission is the heart of your Square Body truck's drivetrain, responsible for transferring power from the engine to …
Transmission & Drivetrain Systems - Square Body Trucks
# Transmission & Drivetrain Systems - Square Body Trucks ## Overview The transmission and drivetrain system is the heart of power delivery in 1973-1987 GM Square Body trucks. This comprehensive …
Transmission Swap Guide - Square Body Trucks
## Overview The transmission swap guide for GM Square Body trucks (1973-1987) focuses on understanding the rare and desirable transmission options that came from the factory, particularly for collectors and …