TRANSMAX NOTE: This guide is educational. Vehicle symptoms can have more than one cause, so diagnosis is required before deciding what repair is appropriate.
Quality of diagnosis
A successful repair starts with identifying why the original transmission failed and correcting related causes.
Parts and workmanship
Component selection, clearances, cleanliness, assembly and calibration all affect the finished unit.
Cooling system
Excessive heat is one of the biggest enemies of automatic transmissions.
Vehicle load and use
Towing, commercial use, heavy loads, modified power levels and driving conditions can affect service life.
Maintenance after repair
Proper fluid, leak checks, cooling-system health and recommended service all matter over time.