1986 Trans Am Manual Transmission

The 1986 Pontiac Trans Am featured a manual transmission option that was popular among performance enthusiasts. This 5-speed manual transmission provided precise gear shifting and enhanced driving engagement. Below are key sections covering specifications, operation, maintenance, troubleshooting, and technical details specific to the 1986 Trans Am manual transmission system.

1. Transmission Specifications 2. Gear Ratios and Operation 3. Clutch System 4. Shift Pattern and Controls 5. Maintenance Schedule 6. Fluid Requirements 7. Common Issues 8. Performance Tips 9. Replacement Parts 10. Technical Service 11. Troubleshooting Guide

Transmission Specifications

The 1986 Trans Am manual transmission was a BorgWarner T-5 5-speed unit designed for performance driving with smooth shifting characteristics.

Specification	Details
Transmission Type	BorgWarner T-5 5-speed manual
Gear Ratios	1st: 3.35, 2nd: 1.99, 3rd: 1.33, 4th: 1.00, 5th: 0.73
Reverse Ratio	3.22:1
Case Material	Aluminum alloy
Lubricant Capacity	3.5 quarts (3.3 liters)
Recommended Fluid	GM Manual Transmission Fluid or equivalent
Shift Linkage	Direct mechanical linkage
Clutch Type	Hydraulic actuated single disc
Input Shaft	10 spline, 1-1/16" diameter
Output Shaft	27 spline

Gear Ratios and Operation

Understanding the gear ratios and proper shifting technique for optimal performance and longevity.

1st Gear (3.35:1): For initial acceleration and low-speed maneuvering
2nd Gear (1.99:1): Smooth transition for city driving
3rd Gear (1.33:1): Highway merging and passing
4th Gear (1.00:1): Direct drive for fuel efficiency
5th Gear (0.73:1): Overdrive for highway cruising

WARNING! Always depress clutch fully when shifting. Avoid forcing gears to prevent transmission damage.

Clutch System

The hydraulic clutch system requires proper maintenance for smooth operation.

Clutch Pedal: Adjust free play to 1-1.5 inches
Master Cylinder: Located under dashboard
Slave Cylinder: Mounted on transmission bellhousing
Clutch Disc: Organic or ceramic material options
Pressure Plate: Diaphragm spring type

CAUTION! Check clutch fluid reservoir regularly. Low fluid indicates potential leaks in system.

Shift Pattern and Controls

Shift Pattern: Standard H-pattern with reverse left and up
Shift Lever: Console-mounted with leather boot
Gear Positions: R-1-3-5 (top), 2-4 (bottom)
Reverse Lockout: Lift collar on shift knob to engage reverse
Shift Effort: Moderate with positive engagement
Synchros: Brass synchronizers on all forward gears
Shift Quality: Crisp, mechanical feel with short throws
Gear Engagement: Positive engagement with audible click

Maintenance Schedule

Regular maintenance ensures transmission longevity and optimal performance.

Every 3,000 miles: Check transmission fluid level and condition

Every 30,000 miles: Replace transmission fluid and filter

Every 60,000 miles: Inspect clutch components and shift linkage

As needed: Adjust clutch pedal free play and shift mechanism

Fluid Requirements

Proper fluid selection is critical for transmission protection and performance.

Use only GM-approved manual transmission fluid or equivalent
Check fluid level with vehicle on level surface
Fill plug located on driver side of transmission case
Fluid should be changed if discolored or contaminated
Use fluid meeting GM specification 12345349

Tip: Warm transmission before fluid change for complete drainage.

Common Issues

Typical problems encountered with the T-5 transmission and their solutions.

Grinding gears: Worn synchronizers or low fluid
Difficulty shifting: Clutch adjustment or hydraulic issues
Transmission noise: Bearings or gear wear
Fluid leaks: Seal or gasket failure
Vibration: Driveline or mount problems
Jumping out of gear: Worn shift forks or detents
Stiff shifting: Old fluid or linkage problems
Clutch slippage: Worn clutch disc or pressure plate

WARNING! Address transmission issues promptly to prevent costly repairs.

Performance Tips

Enhancing transmission performance and driving experience.

Short-throw shifters: Reduce shift throw distance by 30-40%

Performance clutch: Improved holding capacity for modified engines

Synthetic fluids: Better protection and shift quality in extreme conditions

Bushing upgrades: Polyurethane for improved shift precision

Replacement Parts

Common replacement components for maintenance and repair.

Part	GM Part Number	Description
Transmission Fluid	12345349	Manual transmission lubricant
Clutch Kit	14087925	Complete clutch assembly
Shift Lever	14088641	Factory replacement shift lever
Master Cylinder	18014929	Hydraulic clutch master cylinder
Slave Cylinder	18014930	Hydraulic clutch slave cylinder

Technical Service

Professional service procedures and technical specifications.

Transmission removal requires supporting engine, disconnecting driveshaft, and removing crossmember. Torque specifications: Bellhousing bolts 55 ft-lbs, Driveshaft bolts 15 ft-lbs, Fill plug 25 ft-lbs. Shift linkage adjustment critical for proper gear engagement. Clutch hydraulic system requires bleeding after service.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Grinding in gear	Worn synchronizers	Replace synchronizer assembly; check fluid level
Hard shifting	Clutch not disengaging	Adjust clutch pedal; bleed hydraulic system
Transmission noise	Low fluid or bearing wear	Check fluid level; inspect bearings
Fluid leaks	Seal failure	Replace output shaft or input shaft seals
Won't go into gear	Clutch issues	Check master/slave cylinders; adjust linkage

Service Note: Transmission repairs require specialized tools and expertise.

Technical Support: Consult GM service manual or qualified transmission specialist