4TH GEAR PERFORMANCE / DALLAS, GEORGIA

R-CHASSIS SERVICE & PERFORMANCE

Maintenance, diagnostics, repairs and carefully matched upgrades for R32, R33 and R34 Skyline owners and R35 Nissan GT-R owners.

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FIND YOUR GENERATION. PLAN YOUR NEXT STEP.

Choose Your Chassis

R32RB20DE/DET · RB25DE · RB26DETT

R33RB25DE/DET · RB26DETT

R34RB20DE · RB25DE/DET · RB26DETT

R35VR38DETT

Explore R32

01 / 04OVERVIEW

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White R32 Skyline parked inside the 4th Gear Performance workshop

01 / OVERVIEW

R32

SKYLINE FAMILY / GT-R & OTHER VARIANTS

An R32 often starts with a mechanical refresh: establish its history, inspect aging systems and understand earlier modifications. The GT-R pairs an RB26 twin-turbo inline-six with all-wheel drive; other Skyline variants need their own service plan.

White R32 Skyline beside a workshop vehicle lift

02 / SERVICE NEEDS

START WITH A MECHANICAL BASELINE

Before recommending repairs or upgrades for your R32, we establish its configuration, previous changes, current condition, and which systems need attention.

Engine & cooling — Establish service history; inspect hoses, leaks and cooling-system condition.

Chassis & drivetrain — Evaluate worn joints, bushings, brakes and driveline condition.

Electrical & fuel — Review aging wiring and previous modifications where symptoms or history warrant.

R32 engine bay showing the engine and supporting components

03 / UPGRADE PATHS

BUILD TOWARD A DEFINED GOAL

A street refresh, a sharper performance car, and a larger build should not follow the same path. We match each change to how you want the car to perform and what the rest of the vehicle can support.

Street Refresh

Prioritize aged hoses, leaks, worn bushings and overdue maintenance before adding more load.

Street Performance

Build on a sound baseline with cooling, brake and suspension improvements suited to the installed engine.

High Performance

Plan engine work around measured condition, then match fuel delivery, cooling and driveline support.

Front three-quarter view of a white R32 Skyline in the workshop

04 / FAQ

R32 questions, answered.

I just bought an imported R32. Where do we start?

Bring the records you have and a list of concerns. We can establish a mechanical baseline, review existing modifications and prioritize work around the condition of your car.

Does an R32 GT-R need the same service plan as other R32s?

No. Engine and drivetrain configurations differ. Confirming the exact variant and any swaps helps determine the right fluids, components and inspection priorities.

Should I refresh aging components before adding upgrades?

Often that is the sensible starting point. Cooling, braking, suspension and existing faults should be considered before selecting parts; the priorities depend on what we find.

Explore R33

01 / 04OVERVIEW

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Two R33 Skylines parked outdoors, with a dark car in front and a silver car behind

01 / OVERVIEW

R33

SKYLINE FAMILY / CONFIRM YOUR CONFIGURATION

For an R33 with years of changes behind it, the installed combination matters as much as the badge. Review how the engine, cooling, suspension and drivetrain work together. GT-R models use the RB26 twin-turbo inline-six and all-wheel drive; other variants differ.

Close-up of a metallic RB26 engine cover in an engine bay

02 / SERVICE NEEDS

START WITH A MECHANICAL BASELINE

Before recommending repairs or upgrades for your R33, we establish its configuration, previous changes, current condition, and which systems need attention.

Cooling & fuel — Check supporting-system condition against the installed combination.

Suspension & brakes — Assess wear, ride quality, braking concerns and parts compatibility.

Previous work — Review wiring, hoses and installation quality on modified cars.

R33 engine bay with a white RB26 engine cover, turbocharger and metal intake piping

03 / UPGRADE PATHS

BUILD TOWARD A DEFINED GOAL

A street refresh, a sharper performance car, and a larger build should not follow the same path. We match each change to how you want the car to perform and what the rest of the vehicle can support.

Street Refresh

Address fluid history, worn dampers, bushings and brakes to establish a predictable starting point.

Street Performance

Match suspension and braking changes to the tires, ride height and existing powertrain setup.

High Performance

Review previous installations before planning engine, fuel, cooling and drivetrain changes as a complete package.

Dark R33 Skyline with its hood open and engine bay visible inside the workshop

04 / FAQ

R33 questions, answered.

Can you evaluate modifications already installed on my R33?

Yes. Share any parts list, receipts and symptoms. The evaluation can focus on compatibility, installation condition and the systems supporting those changes.

My R33 feels unsettled over bumps. What should be checked?

Tires, suspension joints, bushings, dampers and the installed setup may all be relevant. An inspection helps identify the cause before choosing replacement parts.

Can I use the same upgrade plan for an R33 GT-R and a GTS model?

Not automatically. The engine, drivetrain and existing equipment need to be identified first. Parts and supporting-system needs depend on the exact vehicle.

Explore R34

01 / 04OVERVIEW

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Blue R34 Skyline parked inside the workshop

01 / OVERVIEW

R34

SKYLINE FAMILY / VARIANT-SPECIFIC PLANNING

An R34 plan begins with the variant: the 25GT Turbo uses an RB25DET turbo inline-six, while the GT-R uses the twin-turbo RB26 with all-wheel drive. Confirm swaps and installed equipment before selecting parts, and preserve components that still meet the goal.

Blue R34 Skyline with an engine in the workshop

02 / SERVICE NEEDS

START WITH A MECHANICAL BASELINE

Before recommending repairs or upgrades for your R34, we establish its configuration, previous changes, current condition, and which systems need attention.

Engine & ignition — Investigate symptoms and review service records before replacing parts.

Cooling & plumbing — Inspect condition and routing, especially around previous upgrades.

Drivetrain & chassis — Assess clutch, driveline, brakes and suspension according to the fitted equipment.

RB26 engine assembly in the workshop

03 / UPGRADE PATHS

BUILD TOWARD A DEFINED GOAL

A street refresh, a sharper performance car, and a larger build should not follow the same path. We match each change to how you want the car to perform and what the rest of the vehicle can support.

Street Refresh

Inspect leaks, ignition concerns, cooling hoses and chassis wear; retain sound components where appropriate.

Street Performance

Choose cooling, brake and drivetrain parts for the exact GT-R, turbo or other Skyline configuration.

High Performance

Define the engine and intended use first, then size fuel, heat-management and drivetrain support around the plan.

Front three-quarter view of the blue R34 Skyline

04 / FAQ

R34 questions, answered.

Does my R34 need to be a GT-R to discuss service?

No. Tell us the model, engine and drivetrain, including any swaps. The appropriate scope and parts depend on that information.

Can you help plan an R34 engine rebuild?

Start with its symptoms, current engine specification and intended use. Inspection and appropriate testing help define repair needs before an assembly plan is agreed.

How do I choose upgrades without replacing good parts unnecessarily?

Begin with a condition review and a clear goal. We can discuss which existing components support that goal and where maintenance or matched upgrades make more sense.

Explore R35

01 / 04OVERVIEW

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Red R35 Nissan GT-R parked inside the workshop

01 / OVERVIEW

R35

NISSAN GT-R / TWIN-TURBO V6 / DUAL-CLUTCH AWD

The R35 Nissan GT-R has a 3.8-liter VR38DETT twin-turbo V6 and an all-wheel-drive system with a six-speed dual-clutch rear transaxle. Start with model-year requirements and service history, then consider heat, braking and drivetrain needs for the way it is driven.

R35 GT-R engine and surrounding engine-bay components

02 / SERVICE NEEDS

START WITH A MECHANICAL BASELINE

Before recommending repairs or upgrades for your R35, we establish its configuration, previous changes, current condition, and which systems need attention.

Fluids & drivetrain — Review maintenance history, operating concerns and the correct service requirements.

Engine & cooling — Evaluate leaks, heat-management needs and installed supporting hardware.

Brakes & suspension — Consider vehicle use, wear and the condition of the current setup.

Close view of the R35 GT-R engine and supporting systems

03 / UPGRADE PATHS

BUILD TOWARD A DEFINED GOAL

A street refresh, a sharper performance car, and a larger build should not follow the same path. We match each change to how you want the car to perform and what the rest of the vehicle can support.

Street Refresh

Establish engine, transmission and differential fluid history, then inspect brakes, tires and suspension.

Street Performance

Match cooling and brake support to road or track use while considering the dual-clutch drivetrain.

High Performance

Plan engine and fuel changes alongside heat management and the condition and suitability of the transaxle.

Front three-quarter view of a red R35 Nissan GT-R

04 / FAQ

R35 questions, answered.

What should I bring for a newly purchased R35 assessment?

Service records, the current modification list and any symptoms are useful. They help guide priorities for fluids, drivetrain, cooling, brakes and the installed combination.

Should the dual-clutch drivetrain be considered when planning upgrades?

Yes. The drivetrain is part of the overall combination. Its condition, service history and suitability for the proposed work should be considered alongside engine and supporting systems.

My R35 sees spirited road or track use. Does that change the plan?

Intended use matters. Share how the car is driven so brake condition, cooling, fluids and inspection priorities can be discussed against the appropriate vehicle guidance.

COMPLETE-CAR SERVICE

R-CHASSIS SERVICE, FROM BASELINE TO BUILD.

Maintenance, diagnostics, repair, and performance work approached with the engine, cooling, drivetrain, brakes, suspension, and chassis in context.

Maintenance
Diagnostics
Engine repair
Cooling systems
Fuel systems
Turbo & exhaust
Suspension
Brakes
Clutch & drivetrain
Performance upgrades
Mechanical refresh

DEFINE THE OUTCOME

WHAT DO YOU WANT THE CAR TO DO?

Maintain It

Keep the car healthy, reliable, and current on the service that protects it.

Refresh It

Correct age, wear, deferred maintenance, and previous work so the car feels right again.

Upgrade It

Improve performance with changes chosen to work with the car's current configuration.

Build It

Plan a larger combination by matching the performance goal with the fuel, cooling, drivetrain, braking, and chassis support it needs.

R-platform engine bay and supporting systems

BASELINE BEFORE UPGRADES

KNOW WHAT YOU'RE STARTING WITH.

R32, R33, and R34 cars can have decades of maintenance, modifications, imported-market differences, and previous work behind them. R35s bring a different set of service and drivetrain considerations. We establish the exact configuration, service history, current condition, and existing hardware before deciding what deserves attention.

That lets us preserve what already works, correct what doesn't, and spend money where it actually moves the car forward.

Discuss your starting point

RB26 engine detail

PARTS THAT FIT THE PLAN

THE RIGHT PART SHOULD MAKE THE WHOLE CAR BETTER.

Good parts choices start with the exact vehicle, the hardware already installed, and what you're trying to accomplish. We use fitment and the larger plan to connect the part to the system around it.

SHOP R35 GT-R PARTS

HOW WE WORK

A CLEAR PATH FROM ASSESSMENT TO EXECUTION.

01
TELL US ABOUT THE CAR
What it is, what has been changed, what it's doing, and what you want from it.
02
ESTABLISH THE BASELINE
We verify the configuration, condition, service history, and previous work that matter to the job.
03
DEFINE THE WORK
We prioritize maintenance, repairs, and upgrades in the order that makes sense.
04
EXECUTE THE PLAN
We complete the agreed work with the supporting systems and end goal in mind.

WHY 4TH GEAR

PLATFORM KNOWLEDGE. WHOLE-CAR THINKING.

4th Gear combines a focused approach to Nissan, Infiniti, Supra, and modified JDM platforms with a systems-based approach to service and performance. We diagnose before replacing parts, account for the work that's already been done, and plan around how the engine, fuel, cooling, drivetrain, brakes, suspension, and chassis work together.

The goal isn't to put more parts on the car. It's to make the car better at what you want it to do.

YOUR R-CHASSIS. YOUR GOALS. A PLAN THAT MAKES SENSE.

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