4L60E Master Rebuild Kit with Deep Pan Filter 1997-2003

This kit is for the 1997-2003 4L60E behind a Silverado or Sierra 1500, Tahoe, Suburban, Blazer, S10, Jimmy, Sonoma, Astro, Safari, Express or Savana, early Trailblazer and Envoy, Camaro, Firebird or Escalade, when the truck slips on the 3-4 shift, cooks its fluid, or goes into reverse late. It packs the overhaul gaskets and seals, a friction clutch module, a steel clutch module and a deep-pan filter in one box, along with tech sheets for the build.

What this master kit does in a 1997-2003 4L60E

A 4L60E builds each gear by applying clutch packs and the 2-4 band with pump pressure that is sealed by rings and lip seals along the way. In this era the converter clutch is pulse-width modulated, so the valve body and its seals have more to do than in the earliest units. The friction module renews the forward, overrun, 3-4 and low/reverse packs, and the steel module replaces the reaction plates they clamp against. Steels matter: a glazed or heat-blued steel will overheat a new friction quickly, so a kit that includes them removes the temptation to reuse old plates.

Symptoms this kit addresses

• Flare or slip on the 3-4 upshift, especially loaded or towing
• Burnt fluid and friction material in the pan
• Late or soft engagement into drive or reverse
• Multiple seal leaks on a high-mileage unit
• No third or fourth gear, which is often the sun shell splines stripping rather than the clutches, so check the shell before reassembly

How to confirm the problem

Look at the fluid and the old filter first. A filter packed with friction material confirms the clutches are gone, while clean fluid with harsh shifts or converter slip codes points toward the valve body. The 4L60E valve body walkthrough shows how to inspect the bores that cause TCC slip on these years, and the common problems guide covers sorting out the rest.

Fitment and the deep-pan filter

The listing covers 1997-2003 4L60E transmissions: Silverado and Sierra 1500 (1999-2003), Tahoe, Suburban 1500, Blazer, S10, Jimmy, Sonoma, Astro, Safari, Express and Savana 1500, Camaro and Firebird (1997-2002), Trailblazer and Envoy (2002-2003) and Escalade (1999-2003). The filter in this kit is the deep-pan style, which has a longer pickup for a deeper pan. A standard-depth pan needs the shorter filter, so measure your pan or compare the old filter before install. 1993-1996 units and the later 4L65E and 4L70E differ in some gaskets and pistons; if your year is outside this range, look at the 1993-1996 master kit. Not sure? Send us your year and VIN, or browse the 4L60E parts page.

Install notes

• Pre-soak the friction module in ATF and refill with Dexron VI.
• Check 3-4 clutch clearance after stacking the pack; this is the pack that fails first on these trucks.
• Bonded pistons, the 2-4 band and hard parts are not listed as included. If the old pistons have torn or hardened rubber, add a bonded piston set.
• Inspect the sun shell, drums, bushings and the reaction shell while the case is open. A worn shell can be replaced with a 4L60E reaction shell.
• Set gear train end play to the GM range of 0.005-0.036 in, aiming for the middle of it.

Do I need the deep-pan filter or the standard one?

This kit includes the deep-pan style filter, which is for deeper pans. If your truck has the standard-depth pan, you need the shorter filter. Measure the pan or compare the old filter before install.

Does this kit fit a 1996 or 2004 4L60E?

It is listed for 1997-2003 units. Earlier and later units differ in some gaskets and pistons, so check our dated kits or send your year and VIN.

Are the bonded pistons and 2-4 band included?

No. Bonded pistons, the 2-4 band and hard parts are not listed as included. Inspect them during teardown and replace them if worn.

Why does the kit include steels?

Glazed or heat-discolored steels will burn a new friction pack. Replacing the steels with the frictions gives the rebuilt packs a fresh surface to clamp.

What fluid does the rebuilt transmission need?

Dexron VI ATF. Pre-soak the frictions before assembly and check the level hot after the first drive.

• 4L60E Valve Body Rebuild: A Bench Walkthrough
• 4L60E Common Problems, Symptoms, and What to Actually Do About Them
• 4L60E 1-2 Accumulator and Shift Feel: Diagnosis
• 4L60E Rebuild: The Bench Tools You Actually Need