Bm 70360 SHIFT IMPROVER KIT User Manual download pdf

Thank you for choosing B&M, The

performance company with over 50

years experience designing and

manufacturing quality high

performance automotive driveline

components.

Before proceeding with the

installation please read all of the B&M

4L60E Shift Improver Kit installation

instructions so you will be familiar with

the series of steps required too install

this kit. We have made every effort to

include more than enough information

to assist any-one with minimum

mechanical experience to install this

kit.

The B&M 4L60E Shift Improver Kit

mechanically recalibrates your

transmission to produce firm positive

shifts, this helps reduce clutch pack

heat build up and improves

transmission durability. This kit does

not change or modify shift point RPM

in any range. All transmission shift

point RPM and pressure control

functions remain under full PCM

(Powertrain Control Module) control as

they were originally.

No recalibration kit can fix an

already ailing transmission. If your

4L60E is slipping, overheating, shifting

Installation Instructions

Shift Improver Kit

1993 to 2001 GM 4L60E

Part Number 70360

(see www.bmracing.com for the latest application and fitment information)

9500583-04

Printed in the U.S.A.

irregularly or making noise, you should

have it repaired before or, in

conjunction with the installation of your

B&M 4L60E Shift Improver Kit.

General 4L60E Information

B&M’s 4L60E Shift Improver Kit was

designed to provide firm positive shift

quality and improve transmission

durability in original vehicle

installations and those with moderate

engine power improvements. This kit

was not de-signed for and is not

suitable for all out racing applications.

Your 4L60E Transmission is controlled

by the (PCM) which has full control of

the 4L60E’s operation. All of the

parameters that control fluid

pressures, shift point RPM and TCC

(Torque Converter Clutch) Iockup

speed have been preprogramed into

the PCM at the factory. We

have designed this kit as an easy way

to overcome the less desirable

features of the factory calibrated

imperceptible shifts. With this kit you

can set the shifting characteristics of

your 4L60E to one of two levels of

performance, Heavy Duty or Street.

Heavy Duty level produces a solid,

noticeably firm shift when compared

to the stock shift feel. While Street

level produces a slightly quicker and

more aggressive shift compared to

Heavy Duty level. After installing the

B&M Shift Improver Kit the actual shift

feel you get will depend on the factory

PCM calibration, Automatic

Transmission Fluid (ATF) temperature

and the type of ATF you have used.

As ATF temperature increases it

becomes thinner (less viscous) which

allows the fluid to flow faster through

small orifices thereby producing faster

shift rates. In addition to the effects of

temperature, each type of ATF (B&M

Synthetic Trick Shift,

Dexron III,

Mercon etc.) has a specific

characteristic friction property. This

characteristic friction property is one

of the variables that determines shift

feel and clutch torque capacity.

Dexron/Mercon type ATF’s were

formulated to produce smooth

imperceptible shifts. Both Mercon/

Dexcron III and B&M Synthetic

Trick Shift

ATF’s are suitable for use

in your 4L60E transmission. For

Maximum performance and positive

shift feel we recommend B&M

Synthetic Trick Shift

ATF.

PLEASE READ INSTRUCTIONS BEFORE

SETTING UP TO INSTALL KIT

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - Shift Improver Kit

1Thank you for choosing B&M, Theperformance company with over 50years experience designing andmanufacturing quality highperformance automotive dri

Page 2

2Special InstructionsMetric tools are required todisassemble and assemble the4L60E, see tool list at rear of thisbooklet. Choose a clean, dirt and dus

Page 3 - ABCDEFG

3VALVE BODY FASTENERSID Metric sixe Inch Length QtyA M6 X 1.0 X 65 2.56 (4)B M6 X 1.0 X 54.5 2.14” (3 )C M5 X 1.0 X 47.5 1.87” (9)D M6 X 1.0 X 18.0 0

Page 4

4The vehicle should be raised sothere is at least 2 feet groundclearance for ease of installationand safety.MAKE SURE THE VEHICLE ISRIGIDLY AND SECURE

Page 5

5the performance level (Heavy Duty orStreet). Remove burrs and clean theseparator plate after drilling holes.STEP 9. Install Aluminum Plug inSeparato

Page 6 - 1994 to 01

612). With the 3-4 Accumulatorcomponents and the case check ballin place, Place the Separator Plateand gasket assembly up to the casefollowed by the 1

Page 7

7align holes and install all bolts fingertight. Tighten bolts to 12 NM (9 Lb.Ft.). Do not over tighten bolts. If thebolts are over tightened the gaske

Page 8

8ERROR CONDITION WHERE TO LOOK FOR CAUSEHigh or Low Oil Pressure Oil Pump ~ Pressure Regulator Valve Stuck.~ P/R Retainnig Ring not fully seated in gr

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Bm 70360 SHIFT IMPROVER KIT User Manual

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