The Driveway Engineer guides you through doing basic checks on a 4L80E donor transmission including fluid inspection and air checks…
How To Tell If Your Junkyard 4L80E Is Any Good
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How To & DIY
How To Build a High Performance TH350/TH400 Transmission
DEBOSS Garage uses his ’67 Pontiac GTO project as an excuse to go over how to build a high performance TH350 or TH400 transmission. [More…]
How To & DIY
Change TH350 & TH400 Shift Points with an Adjustable Vacuum Modulator
The B&M GM TH400 and TH350 Vacuum Modulator is fully adjustable, allowing you to customize the shift points (within a range of 2-4 mph). [More…]
Technical Info
3 Most Common 4L60E Transmission Problems
3 most common problems found in a GM 4L60E transmission; 3-4 Clutch Pack Failure, Broken Drive Shell, Worn TCC Regulator Valve are discussed. [More…]