2015 Toyota Tacoma: Transmission & Axle Gear Ratios
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Transmission gear ratios
5-Speed Automatic (A750E/F)
| Gear | Ratio |
|---|---|
| 1st | 3.52:1 |
| 2nd | 2.04:1 |
| 3rd | 1.40:1 |
| 4th | 1.00:1 |
| 5th | 0.71:1 |
| Reverse | 3.22:1 |
4-Speed Automatic (A340E/F)
| Gear | Ratio |
|---|---|
| 1st | 2.80:1 |
| 2nd | 1.53:1 |
| 3rd | 1.00:1 |
| 4th | 0.75:1 |
| Reverse | 2.39:1 |
6-Speed Manual (RA60F)
| Gear | Ratio |
|---|---|
| 1st | 4.17:1 |
| 2nd | 2.19:1 |
| 3rd | 1.49:1 |
| 4th | 1.19:1 |
| 5th | 1.00:1 |
| 6th | 0.85:1 |
| Reverse | 3.63:1 |
5-Speed Manual (R155F)
| Gear | Ratio |
|---|---|
| 1st | 3.95:1 |
| 2nd | 2.06:1 |
| 3rd | 1.45:1 |
| 4th | 1.00:1 |
| 5th | 0.85:1 |
| Reverse | 4.09:1 |
Available axle ratios
| Ratio | Available With | Axle Code | Best For |
|---|---|---|---|
| 3.15:1 | 2.7L I4 2WD (5-speed manual) | A01A | Fuel Economy |
| 3.31:1 | 2.7L I4 2WD (4-speed auto) | A02A | Fuel Economy |
| 3.58:1 | 2.7L I4 4WD (5-speed manual) | A03A | Balanced |
| 3.73:1 | 4.0L V6 4WD (6-speed manual) | B04A | Balanced |
| 4.10:1 | 4.0L V6 (Towing Package) | B05A | Towing |
| 4.30:1 | 4.0L V6 TRD Off-Road | B06A | Towing |
How to identify your axle ratio
To determine the axle ratio of your 2015 Toyota Tacoma, locate the driver's side door jamb sticker. You will find a code on this sticker that corresponds to the axle ratio installed in your truck from the factory. The axle code is typically a four-digit code beginning with a letter, for example, A02A.
Towing vs MPG impact
A numerically lower axle ratio (e.g., 3.15:1) will result in better fuel economy as the engine will be at a lower RPM at highway speeds. Conversely, a numerically higher axle ratio (e.g., 4.30:1) is better for towing. The higher ratio provides more torque to the wheels, making it easier to pull a heavy load. This, however, comes at the cost of fuel economy, as the engine will be running at a a higher RPM.
Common issues
While the 2015 Toyota Tacoma is a very reliable truck, some owners have reported a rear differential whine. This can be caused by a number of factors, including improper gear lash, worn bearings, or a worn ring and pinion. It is important to have this addressed by a qualified mechanic to prevent further damage.
Find a driveline shop on Repairius.
More specs for the 2015 Toyota Tacoma
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2015 Toyota Tacoma Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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