Is the 4L60 a good transmission?

How bad is the 4L60?

For many, the 4L60E transmission is a good transmission, but for others, it appears as if it is the worst transmission ever made. One GM owner stated: “My opinion is that the 4L60E is not the worst transmission ever made. … If used, then one has no idea exactly what the transmission went through before you bought it.”

How long will a 4L60E transmission last?

4l60e from 1996 held up well. Reverse kinda was finicky, every now and than it would slip but had a good life. I honestly think around 250-300k it should be rebuilt if its original.

How much HP can a 4L60 handle?

Their Stage 2 Pro Race transmission can handle gobs of power while their Invincible Black Edition 4L60E trans can support over 1,000 ponies.

What would causes a 4L60E transmission to slip?

ANSWER: This is a common issue with many GM vehicles using the 4L60E transmission, and the odds are high it will not require overhaul. … Slippage can occur due to several possible causes, such as low fluid level, a slipping torque converter clutch, or slipping clutch or band within the transmission.

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What vehicles have a 4l60 transmission?

What vehicles have the 4L60E transmission?

  • Buick Rainier, 2004-2007.
  • Buick Roadmaster, 1994–1996.
  • Cadillac Escalade, 1999-2000, 2002-2005 (models with LM7/5.3L V8 Also with 6.0 LQ9)
  • Cadillac Fleetwood, 1994–1996.
  • Chevrolet Astro, 1993-2005.
  • Chevrolet Avalanche, 2002-2008.
  • Chevrolet S-10 Blazer, 1994-2005.

How can I tell if my 4L60E transmission is bad?

3 Symptoms Of A Failing 4L60E Transmission And How To Diagnose The Problems

  1. No Third Gear – You put the vehicle in drive, start off the transmission, and shift to second gear. …
  2. No Second Gear/Reverse – The second most common symptom of a failing 4L60E transmission is your inability to shift to second gear and go reverse.

Can a 4L60E handle 500hp?

A well built 4l60e can handle some serious power. We have cars running 500-600 and 700 rwhp as the power increases of course the odds of failure do increase but we have had very good results. Generally a stock rebuild is not adequate for much more than general bolt ons however.

Can I rebuild my own 4L60E?

Unless you are a seasoned transmission builder with a lot of experience with the 4L60E series transmissions, it is suggested you never execute transmission rebuilding yourself. … We’re unable to show you a step-by-step 4L60E build here because there simply isn’t the space to do so.

What is the difference between 4L60 and 4l80?

The 4L80E is larger and heavier than the 4L60E. Its more hefty build can be tied to its 236 lbs and a length of 26.4″. Alternatively, the 4L60E weighs 150 lbs (without fluid) and it has a length of 23.5″. A comparison between the size and weight shows that the 4L80E is significantly larger and heavier.

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How can I make my transmission stronger?

There are 6 ways to improve automatic transmission performance and reliability. These are servicing the transmission, changing driving habits, driving with lower gears when loaded, maintaining engine performance, having proper alignment of tires, and having the correct tire size.

How can I make my 4L60 stronger?

Now, let’s dive in:

  1. Lay out the important parts on an assembly bench. …
  2. Rebuild with an improved, thicker sun shell. …
  3. Use five-pinion front/rear planetary. …
  4. Use a larger clutch with an input drum reinforcement sleeve. …
  5. Stamped Steel forward clutch apply pistons. …
  6. Use more clutches and larger gear band servo pistons.

Which is better 700R4 or 4L60E?

If the transmission has a large 18-pin electronic connector above the passenger side pan rail, it’s a 4L60E, as seen here. If it has a cable connection near the cooler lines on the passenger’s side, that’s a 700R4. The good news is that either way, you win.

What is the difference between a 4L60E and a 4L60?

The rear output housing is configured with a six-bolt pattern in late model 4L60E transmissions. The 4L60 transmission is configured with a four-bolt pattern. The bolt pattern is not a guaranteed distinction, however, as early 4L60E transmissions, manufactured from 1992 through 1997, also have a four-bolt pattern.