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4L85E Banner Rebuild Kit 1997-2011

$258.99
In stock • ships from the USA • qualifies for FREE shipping

4L85E Banner Rebuild Kit 1997-2011, new and ready to install. Fits the 4L85E. Ships fast from the USA.

Fits these transmissions
Secure Stripe checkout • free shipping over $100 • 30-day returns
Secure Stripe checkout
Ships from the USA
30-day returns

About this product

A banner kit is the budget-minded way to rebuild a 1997-2011 4L80E or 4L85E when the hard parts are still good. If your three-quarter or one-ton GM pickup, Suburban or Express/Savana van is slipping, engaging late, or leaking from the piston and pump seals, and the drums, steels and planetaries pass inspection, this kit renews the parts that actually wore out without paying for pieces you can reuse.

What the banner rebuild kit does in a 4L85E

The kit pictured is built around a Toledo Trans-Kit overhaul set labeled 34002E, for the 4L80-E and 4L85-E from 1991 on, paired with a separate pack of frictions. The overhaul set carries the gaskets, lip seals, piston seals, O-rings and sealing rings that keep apply pressure inside each clutch circuit; the frictions are the lined plates that grip the steels to hold each gear. Together they cover the soft parts of a standard rebuild. What a banner kit leaves out, compared with a master kit, is mainly the steel plates and usually bushings, which is why it costs less. If your steels are flat and clean and the bushings are in spec, that is money saved; if not, add them to the order.

Symptoms that call for a soft-parts rebuild

How to confirm a banner kit is enough

The deciding question is what is in the pan. Lining and dark fluid point to worn frictions that this kit replaces. Heavy metal, chipped gear material or bronze points to hard-part damage, often from an overdrive roller clutch or planetary failure, and that job needs drums, carriers or a full master kit. Our 4L85E filter and pan service guide explains how to read what you find, and our rebuild guide on known wear points lists the parts to measure before you decide.

Fitment: 1997-2011

This listing covers the 1997-2011 center-lube era. The overhaul set itself is labeled for 1991-on units, because the seals and gaskets carry across the whole family; the hard parts are what changed. GM moved the cooler return to the center support in 1997, then thickened the planetary pinions and changed the sun gear shaft in 1999, so a banner rebuild should reuse your own hard parts in their original combination. Check the ID tag on the case, or send us your year and VIN and we will confirm fitment before it ships. The full parts list for this transmission is on the 4L85E collection page.

Install notes


Specifications

Fits4L85E 1997-2011
Part typeBanner Rebuild Kit
ConditionNew
BrandGM
ShipsFrom the USA
Warranty1-year

Complete the job: parts that go with this

Doing this repair right usually means replacing these at the same time. Same transmission, ships together.

4L85E Shift Kit 1991
4L85E Shift Kit 1991
$118.99
4L85E Pump 1997
4L85E Pump 1997
$90.99
4L85E Clutch Drum 1997
4L85E Clutch Drum 1997
$157.99

4L85E Banner Rebuild Kit 1997-2011: common questions

What is the difference between a banner kit and a master kit?

A banner kit combines the overhaul gaskets and seals with new frictions. A master kit adds steels and usually more, such as bushings and a filter. Choose the banner kit when your steels and bushings measure good.

Does it fit a 4L80E as well as a 4L85E?

The overhaul set in the kit is labeled for 4L80-E and 4L85-E units from 1991 on. This listing is matched to 1997-2011 units. Confirm your unit by the case ID tag, or send us your year and VIN.

Are steel plates included?

No steels are shown with this kit. Inspect your steels; if they are blued, warped or glazed, replace them and set clearances with the new plates.

What fluid should I use?

Dexron VI, GM's current service fluid for this transmission family. Clean or replace the cooler and lines before refilling.

When is a banner kit not enough?

When the pan holds heavy metal or broken gear material, or when drums, planetaries or the pump are damaged. Those jobs need hard parts or a full master kit.


Repair guides for this job

Sources
  1. Transmission Digest — Which Planet Are You On?. Wayne Colonna, ATSG. Documents the 1997 center-lube change and the 1999 planetary and sun gear shaft changes. www.transmissiondigest.com/which-planet-are-you-on/
  2. Sonnax — Outsmarting 4L80-E Overdrive Roller Clutch Failure. Lists the collateral damage from an overdrive roller clutch failure, including the overrun drum and overdrive planetary. www.sonnax.com/tech_resources/625-outsmarting-4l80-e-overdrive-roller-clutch-failure
  3. Sonnax — Diagnosing the Elusive NO REVERSE with the 4L80-E. Explains that reverse uses the direct clutch and the low/reverse band, and how to split the circuits. www.sonnax.com/tech_resources/88-diagnosing-the-elusive-no-reverse-with-the-4l80-e

4L85E Banner Rebuild Kit 1997-2011

$258.99
In stock • ships from the USA • FREE shipping • 30-day returns

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