Incl. Gaskets/Seals/Drill Bit/Fluid Separators Shift Improver Kit Automatic Transmission Shift Kit The B&M Shift Improver kits feature two options to recalibrating your 1982-1993 GM TH700R4/4L60 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit. Note: Does not fit GM TH4L60 (non-electronic) transmissions. Brand: B&M Condition: New
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Chevrolet
Trailblazer2002-2004(tapclick to expand)(tapclick to hide)
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SubmodelSUB- MODEL
Body Style
Years
Engine
Attributes
A
SUV
2004
L6 4.2L
RWD Automatic
B
SUV
2004
L6 4.2L
RWD Automatic
Base
SUV
2003 - 2004
L6 4.2L
RWD Automatic
LS
SUV
2002 - 2004
L6 4.2L
RWD/4WD Automatic
LT
SUV
2002 - 2004
L6 4.2L
RWD/4WD Automatic
LTZ
SUV
2002 - 2003
L6 4.2L
RWD/4WD Automatic
North Face
SUV
2002 - 2004
L6 4.2L
RWD/4WD Automatic
Years
Make
Model
Submodel
Body Style
Engine
Attributes
2004
Chevrolet
Trailblazer
A
SUV
L6 4.2L
RWD Automatic
2004
Chevrolet
Trailblazer
B
SUV
L6 4.2L
RWD Automatic
2003 - 2004
Chevrolet
Trailblazer
Base
SUV
L6 4.2L
RWD Automatic
2002 - 2004
Chevrolet
Trailblazer
LS
SUV
L6 4.2L
RWD/4WD Automatic
2002 - 2004
Chevrolet
Trailblazer
LT
SUV
L6 4.2L
RWD/4WD Automatic
2002 - 2004
Chevrolet
Trailblazer
North Face
SUV
L6 4.2L
RWD/4WD Automatic
2002 - 2003
Chevrolet
Trailblazer
LTZ
SUV
L6 4.2L
RWD/4WD Automatic
⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.
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We offer fast, reliable shipping on all orders:
Ships to all countries via US Postal Service Priority Mail.
Most orders ship within 1 business day.
Delivery time: 1-4 business days after shipment.
International shipping available, including APO/FPO addresses.
Tracking information provided for all shipments.
Additional handling fees may apply for oversized/overweight packages.
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We want you to be 100% satisfied with your purchase. That's why we offer:
120-Day Returns - Return any part within 120 days from date of receipt.
Must obtain RMA (Return Merchandise Authorization) number before returning.
Parts must be in original condition, uninstalled, unaltered, and in original packaging.
Important: Electrical parts are not returnable if unsealed.
Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
Refunds processed after warehouse receives return and credited to original payment method.
Warranty
This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.
Warranty does NOT cover:
Shipping costs or labor expenses.
Installation errors.
Parts used for racing.
Commercial vehicle parts.
More Information
The B&M Shift Improver kits feature two options to recalibrating your 1982-1993 GM TH700R4/4L60 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit. Note: Does not fit GM TH4L60 (non-electronic) transmissions.
Fits Years: 2002 2003 2004
Fits Models: Trailblazer
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