2002 Trailblazer Transmission

The 2002 Chevrolet Trailblazer is the second model year of the first (and only in the U.S.) of GM’s once popular midsize SUV.  Almost without exception, the transmission that came in these trucks was a 4L60E.  The only exception ever was the Trailblazer SS that would come in later model years.  Now, depending on what … Read more

2006 Trailblazer Transmission

2006 is the first model year for the Chevrolet Trailblazer where every single unit manufactured didn’t come with the 4L60E.  That’s due to the introduction of the Trailblazer SS, which needed a more powerful transmission and got one in the 4L70E.   2006 Trailblazer Transmission Fluid  Capacity The Transmission fluid capacity on a 06 Trailblazer … Read more

2005 Trailblazer Transmission

The 2005 Chevrolet Trailblazer is the 4’th model year for this SUV.  Like the 02-04 Trailblazer’s that came before it, the 05 model comes equipped with the 4L60E transmission regardless of which engine it was equipped with.  Though, there are some unique changes to the 4l60E to accommodate the I6 motor these trucks came with.   … Read more

2004 Trailblazer Transmission

For the most part, but 2004 trailblazer transmission is a carryover from the 2003 trailblazer transmission.  The Trailblazer utilizes the 4L60E transmission in all models.  The 4L60E is very capable in these trucks.  With the trailblazer, it’s more likely that the engine will fail before the transmission does.  The exception to that would be any Trailblazer … Read more

Th400 vs 4L80E Differences

Clearly, the biggest difference between the TH400 vs 4L80E is the 4L80E’s overdrive gear. Although they come from different eras, there is quite a bit that these two transmissions have in common.  The mere fact that people are so interested in this topic is a testament to the absolute bulletproof reputation of the TH400.  There … Read more

Where is the thermostat located?

Traditionally finding the thermostat on a car or truck has been a relatively easy job.  It used to always be right there on top of the intake manifold.  Now, where the thermostat is located is going to depend a heck of a lot on whether the engine is transverse mounted or mounted longitudinally.  A basic … Read more

700r4 vs 4L60E

The 700R4 and 4L60E transmission are not siblings.  It is better to think of them as the continuation of the same design.  From the early eighties until quite recently it has been in service in GM passenger vehicles and light trucks.  Throughout that whole period, they have constantly improved. When the 4L60E made it into … Read more

4T65E Problems

The 4T65E is for the most part a fairly reliable transmission.  It is the successor to the 4T60E.  Variations of this transmission have been common since the 1980’s.  By the 2000’s most of the kinks were worked out.  But, like everything else, it’ll break and wear out with mileage and time.  So without further fanfare, … Read more

CV Joint Noise + Symptoms

What does a CV joint do anyway?  A CV joint (short for Constant-Velocity joint) transfers power to the wheels exactly like a drive shaft would on a rear wheel drive car.  The rub with a CV joint is that it has to transfer power at MULTIPLE ANGLES. There are two CV joints per axle.  They … Read more