1993-2002

Automatic Transmission Upgrades

 

Shift Improvement Kits

ShiftPlus simply recalibrates your transmission's hydraulic system electronically. The ShiftPlus shift firmness not only makes driving more fun and pleasurable, but slippage and heat are reduced - extending the life of your transmission. Anyone can install a B&M ShiftPlus in minutes with a few simple hand tools. This new design allows you to improve the transmission's shifting performance without removing the transmission pan or valve body. The B&M ShiftPlus electronically enhances shift quality and is adjustable. A simple flip of the switch allows the transmission to operate in the performance mode. Flip it back and you are back to stock!

 

Part Number

Description

Price

Buy

B&M-70380

B&M ShiftPlus Electronic Shift Improver

$36.10

 


The B&M Shift Improver Kit is the easiest way to get the stout performance you've always wanted out of your automatic transmission - and you get two modes of performance to select from: Heavy Duty or Street/Strip. It's B&M's least expensive and simplest to install kit. All you need are a few dollars and some hand tools! In the space of an afternoon, you can turn your transmission into a B&M-tuned unit!

Heavy Duty - Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. Recommended for regular passenger vehicles.

Street/Strip - Provides very positive shifts for high-performance street use or for the enthusiast who wants the hardest, quickest possible shift.

  • Provides crisp shifts on any stock automatic transmission.

  • Elimination of soft sluggish shifts, shift overlap, and excess wear on clutches and bands due to slippage.

  • Improves transmission life.

  • Transmission removal not required

Part Number

Description

Price

Buy

B&M-70239

B&M Shift Improver Kit - 4L60 Transmission - 1993 F-Body

$41.95

B&M-70360

B&M Shift Improver Kit - 4L60E Transmission - 1994-2002 F-Body

$41.95

 


The next step up from the Shift Improver Kit is the Transpak. It has all the features in the Shift Improver Kit plus it provides additional driver manual control (GM TH-400, TH-350, Ford C6, and Dodge TorqueFlight Only). Most stock automatic transmissions won't downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you're in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you've got a modified engine, and you want additional RPMs, or you're towing a trailer or driving heavy loads downhill. Each Transpak is 2 kits in 1:

 

Stage 1: Heavy Duty For street rods, normal passenger vehicles, or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort. Normal automatic operation when in Drive.

 

Stage 2: Hi-Performance Street For full performance street use. Essentially the same as Heavy Duty mode except shift is much quicker. Retain full automatic features and standard shift points with selector in Drive.

  • Recalibrates your automatic transmission for optimum performance.

  • Two different modes for alternate applications.

  • Improves transmission life.

  • Transmission removal not required.

Part Number

Description

Price

Buy

B&M-70235

B&M Transpak - 4L60 Transmission - 1993 F-Body

$69.71

B&M-70365

B&M Transpak - 4L60E Transmission - 1994-2002 F-Body

$69.71

 


This kit provides wide open throttle 3 to 4 upshifts for TH-700-R4 (4L60) transmissions. This is not provided on most TH-700-R4 transmissions (except Corvettes and some IROC's). Most TH-700-R4 transmissions will downshift from 4th to 3rd gear at about 3/4 throttle. This allows the transmission to remain in 4th gear at full throttle. Does not work on 4L60E electronically controlled transmissions.

 

Part Number

Description

Price

Buy

B&M-70249

B&M Wide Open Throttle 3-4 Upshift Kit - 4L60 Transmission - 1993 F-Body

$114.29

 


Transform your stock slush box into a performer with a JET Transperformance kit. Designed for street performance and towing applications to eliminate sloppy shifting. Extends life of transmission by reducing clutch slippage and heat buildup.

  • Provides Crisp, Positive Shifts!

  • Reduces heat build-up.

  • Improves Towing Performance!

  • Installs without removing transmission!

  • Eliminates Slippage!

  • Improves Acceleration!

  • Increases Transmission Life!

  • Easy to Follow Instructions!

Part Number

Description

Price

Buy

JET-750210

JET Transperformance Kit - 1994-1998 4L60E

$67.45

 


The JET Power Shift gives you the ability to select between four different transmission settings of shift firmness. These selections are from Stock, Stage 1, Stage 2, and Stage 3.

  • Easy To Install!

  • Improved Shifting!

  • Select From 4 Different Shift Firmness Settings!

  • Allows Power To Transfer To The Ground Quicker!

  • Extends The Life Of Your Transmission!

Part Number

Description

Price

Buy

JET-70701

JET Powershift Electronic Shift Improvement Kit - 4L60E

$120.64

 


The JET Power Shift Plus is the ultimate shift upgrade kit for late model trucks. The JET kit includes the popular Power Shift controller, plus all the necessary components to upgrade the valve body in your transmission.

  • Provides crisp, positive Shifts!

  • Eliminates Slippage And Reduces Heat Build-Up!

  • Combines The Electronic Shift Improvement Features With A Mechanical Valve Body Upgrade For Maximum Shift Performance!

  • Improves Acceleration & Towing Performance!

  • Extends The Life Of Your Transmission!

Installation: The Power Shift simply connects inline with the transmission harness and the valve body upgrade simply replaces springs and valves in the valve body. Transmission Removal is not required.

 

Part Number

Description

Price

Buy

JET-70706

JET Combination Electrical and Mechanical Shift Improvement Kit - 4L60E

$187.46

 


Changes springs and valves in the transmission valve body, redirecting the transmission fluid to create the desired shift points and shift firmness. This allows driver-controlled shifts and also increases the life of a transmission. Installation video included.

  • Driver Controlled Shifts!

  • Dramatic Increase in Firmness Control and Durability!

  • No Special Tools Needed!

  • Transmission Removal Not Required!

  • Installation Video Included!

Installation: Requires removal of the transmission valve body, but not the transmission itself. Spring and valve replacements are optional depending on the desired end result. In some cases drilling is necessary using the supplied drill bit(s). All kits include an installation video and complete instructions. It is recommended to watch the video first to determine one's comfort with self installation. Most installations can be performed by a novice within a day.

 

Part Number

Description

Price

Buy

TRANSGO-4L60E

TRANSGO Performance Shift Kit for ALL vehicles with GM 4L60E Transmission

$138.26

TRANSGO-4L60E.S TRANSGO Performance Stick Type Shift Kit for ALL vehicles with GM 4L60E Transmission
  • Cancels all automatic Shifts
  • Puts diver in control of all shifts by moving the shift lever
  • Recommended for off road, pro street, and pro competition
  • Total Shift Lever Control
$236.84

 


Transmission Rebuild Kits

Rebuild your stock TH-700-R4 or 4L60E transmission with a JET performance rebuild kit. Kits include all parts required for a normal rebuild, plus upgrades used on our performance built transmissions. For best results with the TH-700-R4 kit, use an 87-92 core since they have several GM upgrades already installed. TH-700-R4 kits are available lockup or non-lockup. Kits are designed for professional assembly only.

Part Number

Description

Price

Buy

JET-750201 JET 4L60E Rebuild Kit (No Converter) $352.91
JET-750202 JET 4L60E Rebuild Kit With Converter $635.26

 


 

Performance Servos

A Powr-Servo upgrade features a larger application area which holds the band with greater force. It will dramatically improve the 1-2 shift and prevents band slippage under hard throttle or towing conditions. Easy install on outside of transmission housing.

 

Part Number

Description

Price

Buy

JET-750211

JET Power-Servo - 4L60E

$44.96

 


Clutch Packs

Factory TH-700-R4 and 4L60-E transmissions have a common weakness in the 3rd gear clutch pack. The JET 9-pack clutch kit replaces the factory 6-pack for addes holding power and durability in 3rd gear. Prevents premature failure and heat buildup from clutch slippage.

 

Part Number

Description

Price

Buy

JET-700224

JET 4L60E Clutch Pack

$59.46

 


 

Oil Pans & Accessories

Chrome steel pans feature a chrome finish and built in drain plug. A socket head cap screw kit is included to mount the pan to the transmission. Adds 3 additional quarts of transmission fluid over stock transmission pan.

  • Extra oil capacity = more cooling ability

  • No modifications to the dipstick needed.

  • Some models include fluid pickup extension and gasket.

  • B&M Deep Pans feature built-in drain plugs and mounting hardware.

Part Number

Description

Price

Buy

B&M-70289

B&M Chrome Steel Deep Transmission Oil Pan - 4L60 Only

$43.14

 


Cast aluminum pans feature a polished finish and built in drain plug. A socket head cap screw kit is included to mount the pan to the transmission. Adds 3 additional quarts of transmission fluid over stock transmission pan.

  • Extra oil capacity = more cooling ability

  • No modifications to the dipstick needed.

  • Some models include fluid pickup extension and gasket.

  • B&M Deep Pans feature built-in drain plugs and mounting hardware.

Part Number

Description

Price

Buy

B&M-70260

B&M Cast Aluminum Deep Transmission Oil Pan - 4L60 & 4L60E

$164.29

 


These pans increase oil capacity up to 2 quarts for lower oil temperatures that help prevent oil breakdown and increase transmission life. The stiff cast aluminum design prevents leaks and adds strength to your transmission case. Stock pans are constructed of .035 inch thick steel. JET custom pans are constructed of .160 inch thick aluminum and have a .350 inch thick machined gasket flange. All pans include a drain plug to allow transmission fluid changes without removing the pan.

  • Increased Oil Capacity!

  • Constructed Of Cast Aluminum!

  • Adds Strength To Your Transmission Case!

  • Drain Plug Allows Oil Changes Without Pan Removal!

Installation: Direct replacement of stock pan.

 

Part Number

Description

Price

Buy

JET-750230

JET Deep Cast Aluminum Transmission Oil Pan

$205.44

 


Only a few automatic transmissions are equipped with drain plugs from the factory. Removing the pan to drain the fluid can be a mess. Simply remove the pan once, drill a hole, bolt the B&M Drain Plug Kit in, and eliminate messy oil splash forever!

 

Part Number

Description

Price

Buy

B&M-80250

B&M Transmission Drain Plug Kit

$7.99

 


 

Full Transmission Packages

A street performance electronic automatic transmission for small block equipped Street Rods and Street Machines! This package allows the installation of a B&M Street performance GM 4L60E transmission into a vehicle under construction or one that is being upgraded with a late model driveline. The 4L60E is ideal for Small Block applications where overdrive is desired. These transmissions feature all of the same high performance components found in other B&M transmissions including high performance friction materials and all new gaskets and seals. It includes a B&M Street 4L60E automatic transmission, Electronic controller, Torque Converter, SuperCooler, Dip Stick and Tube, dust cover, and 12 quarts of B&M Synthetic Trick Shift. The package comes supplied with the HoleShot 2400 converter, which features furnace brazed impeller and turbine, new precision alloy steel pump drive tube, new billet turbine hub, and a new lock-up clutch. The electronic controller included with this kit allows the transmission to operate throughout its entire range. A calibration module is included which also allows you to set the shift points and shift firmness of the transmission to suit your style of driving. You can easily recalibrate the shift characteristics for your vehicle for ether street performance, cruising, or heavy-duty use with the included calibration module.

  • 4 Speed GM transmission

  • 3:06 first gear ratio, 1:63 second, 1:1 third, and .70 overdrive ratio

  • New thrust washer kit, races, thrust bearings, bushings, and 2-4 band

  • All new B&M high performance friction plates

  • Includes the following Components:

  • 4L60E Transmission

  • HoleShot 2400 Torque Converter

  • Electronic Controller

  • Dip Stick & Tube

  • Dust Cover

  • SuperCooler

  • 12 Quarts Synthetic Trick Shift

  • Calibration Module

Part Number

Description

Price

Buy

B&M-117301

B&M Electronic GM 4L60E Automatic Transmission Package - Street Performance Model

$3300.65

 


JET offers a performance built replacement unit for 93-up GM vehicles light trucks and 94-up GM cars equipped with the 4L60E transmission. The JET 4L60E is built to provide superior shift quality, durability , and performance compared to stock rebuilds. Designed for high performance or heavy duty use. The 4L60E is not typically used for conversions since it is computer controlled.

  • Additional Clutches In 3-4 Clutch Pack And Corvette Servo Piston!

  • Complete Valve Body Kit Installed!

  • Modified Oiling Circuits!

  • Heavy Duty Clutch And Band Lining!

  • Handles 450 ft lbs Of Torque!

Installation: Installs like any stock transmission and although replacement of the Torque Converter is not always required, it is strongly recommended.

 

Part Number

Description

Price

Buy

JET-750101

JET GM 4L60E Performance Transmission - 1993-1995 F-Body

$2287.46

JET-750105

JET GM 4L60E Performance Transmission - 1996-2002 F-Body

$2362.46