1998 GMC C3500 Automatic Transmission Kits

The B&M Shift Plus, recalibrates your transmission’s hydraulic system electronically which firms up the shifts and reduces heat and slippage. A simple flip of the switch allows you to choose which shift firmness setting you want to run.

Product Features:

• Installs In Minutes
• Reduces Slippage and Heat
• 50 State Emissions Legal
• Recalibrates Hydraulic System
• Recalibrates Electronically
• Fun and Pleasurable Drive
• Extends Transmission Life
• Simple Flip Of Switch

Shift Improver Kit 1988 to 1994 Chevrolet, Buick, Olds, Pontiac, GMC TH-400 (3L80) Application: 1988 to 1994 Chevrolet, Buick, Olds, Pontiac, GMC TH-400 (3L80) Recalibrate your automatic transmission for optimum performance and extended life! Select the m

Product Features:

• Provides Crisp Shifts
• On Any Stock Automatic Transmission
• Eliminates Soft/Sluggish Shift
• Eliminates Shift Overlap
• Eliminate Clutch and Band Wear

AT SHIFT KIT

The B&M Shift Improver Kit the easiest way to get the performance you’ve always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit.

Product Features:

• Provides Crisp Shifts
• On Any Stock Automatic Transmission
• Eliminates Soft/Sluggish Shift
• Eliminates Shift Overlap
• Eliminate Clutch and Band Wear
• Improves Transmission Life
• Transmission Removal Not Required

Shift Improver Kits – Buick, Chevrolet, GMC, Olds, Pontiac – 1968 to 1981 TH-350 and M38 Application: 1968 to 1981 TH-350 and M38 (for TH-350C use Transpak # 30235) Recalibrate your automatic transmission for optimum performance and extended life! Provides crisp shifts on any stock automatic transmissions. Elimination of soft sluggish shifts, shift overlap, and excess wear on clutches and bands due to slippage. Improves transmission life. Transmission removal not required. The B&M Shift Improver Kit 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 our 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! Just ask the thousands of satisfied customers that have installed one in their transmissions! Stage 1 – Heavy Duty Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. Recommended for regular passenger vehicles. Stage 2 – Street/Strip Provides very positive shifts for high performance street use or for competitive events. This model is for the enthusiast who wants the hardest, quickest possible shift.

Product Features:

• Recalibrate Auto. Transmission
• Optimum Performance
• Select Your App. Mode
• Improves Transmission Life
• Trans. Removal Not Required
• Downshift At Any Speed
• Great For Trailer Towing
• For Heavy Loads Driving Downhill

The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:

• Recalibrate Auto. Transmission
• Optimum Performance
• Select Your App. Mode
• Improves Transmission Life
• Trans. Removal Not Required

The B&M Shift Improver Kit the easiest way to get the performance you’ve always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit.

Product Features:

• Provides Crisp Shifts
• On Any Stock Automatic Transmission
• Eliminates Soft/Sluggish Shift
• Eliminates Shift Overlap
• Eliminate Clutch and Band Wear
• Improves Transmission Life
• Transmission Removal Not Required

AT SHIFT KIT

The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:

• Recalibrate Auto. Transmission
• Optimum Performance
• Select Your App. Mode
• Improves Transmission Life
• Trans. Removal Not Required
• Downshift At Any Speed
• Great For Trailer Towing
• For Heavy Loads Driving Downhill

These kits include all of the necessary components to rebuild your automatic transmission. OEM style gaskets included. Kits do not include overhaul instructions – please refer to factory shop manual for proper assembly procedures.

Product Features:

• Complete High Perf. Or Racing Trans. Overhaul
• Includes Only OEM Valvebody Gaskets
• Instructions Not Included

This Basic Rebuild Kit contains a complete gasket Kit and friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Does not include steels or filter

AT MSTR REP KIT PLUS

This Basic Rebuild Kit contains a complete gasket Kit and friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Does not include steels or filter

AT MASTER REPAIR KIT

AT MSTR REP KIT PLUS

AT MASTER REPAIR KIT

One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Include steels, frictions, gaskets, and filter
• Includes Band and Modulator (if applicable)

One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Include steels, frictions, gaskets, and filter
• Includes Band and Modulator (if applicable)

One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Include steels, frictions, gaskets, and filter
• Includes Band and Modulator (if applicable)

AT MSTR REP KIT PLUS

One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Include steels, frictions, gaskets, and filter
• Includes Band and Modulator (if applicable)

This Basic Rebuild Kit contains a complete gasket Kit and friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Does not include steels or filter

AT MSTR REP KIT PLUS

This Basic Rebuild Kit contains a complete gasket Kit and friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Does not include steels or filter

AT MASTER REPAIR KIT

One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:

• Include steels, frictions, gaskets, and filter
• Includes Band and Modulator (if applicable)

AUTOMATIC TRANS PART

A B&M transmission in a box! Transform your automatic transmission into a full-tilt B&M performer! This is our ultimate transmission kit – it comes complete with full instructions on how to assemble your transmission to B&M specifications.

Product Features:

• High Perf. Friction Materials
• Complete Overhaul Gasket Set
• Modification Components
• Replacement Valves
• Replacement Springs
• Drain Plug Kit Included