140-12297-D · Factory disc spindle
Black Dynalite front kit
Black calipers, hubs, rotors and pads for the supported applications below. Factory spindle machining, cutting, drilling and tapping are required.
View product & current price1978-1988 GM G-Body | LTAC Garage
LTAC Garage / 1978–1988 GM G-body
Monte Carlo · Malibu · Regal · Cutlass
Your G-body.
Built around your plan.
Street cruiser, weekend car or the next stage of a long-term build. Explore brakes, suspension, steering, exhaust and selected cooling options for this platform, with the year and hardware differences called out below. Shop confidently on your own, or bring LTAC the whole build.
01 / Start with the spindle
Choose your Dynalite finish.
Four-piston front-axle kits with 12.19-inch drilled and slotted rotors. Both use the same application and installation requirements. Match your exact model below before choosing a color.
140-12297-DR · Factory disc spindle
Red Dynalite front kit
The same front-brake configuration with red calipers. Spindle modifications and a wheel-clearance check are required. This is a front-axle kit, not a four-wheel conversion.
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Finish the system: Flex hoses are separate; the listed 220-7056 option must match your chassis fittings, routing and required length. Check master-cylinder sizing, rear brakes and proportioning. Some 15-inch wheels may clear, but diameter alone is not enough. Ask LTAC for the DS-877 instructions and wheel template before ordering.
02 / Front suspension
Build a more composed street car.
52765 · 1978–1988 GM G-body
QA1 Street Performance upper arms
A pair of tubular upper control arms with assembled polyurethane bushings and ball joints. Designed for G-body applications including Monte Carlo, Malibu, Cutlass and Regal. Arrange a professional alignment after installation. Identify aftermarket spindles and other chassis changes before combining parts.
View product & current priceCooling / Turbo Buick
A cooling choice for the Grand National.
1984–1987 Turbo Regal / Grand National · Automatic
Cooling for the turbo Buick
Cold Case GMB57A is a dedicated Turbo Regal / Grand National radiator. This selection does not apply to the other G-body models.
Match your setup: Radiator-support modification is required. Oil and transmission cooler fittings match 1986–87 models; check adapters and lines on 1984–85 cars. Compare the 32 × 18.5 × 3-inch radiator envelope and fan clearance before ordering. Radiator only.
View product & current priceHave a Monte Carlo, Malibu, Cutlass or non-turbo Regal? This radiator is not assigned to your car. LTAC can help match your cooling layout.
Steering / Match the shaft
A more direct connection.
1979–1988 G-body only · Borgeson 000315
Borgeson telescopic steering shaft
Replaces the original rag-joint shaft with a steel assembly and a vibration-reducing joint. Not listed for 1978. Confirm the column and steering-box connections, 15.5–19.5-inch length range and clearance, particularly on modified cars. Steering box sold separately.
View product & current priceExhaust / Check the converter flange
Finish the exhaust behind the converter.
1978–1988 G-body · Pypes SGG50T
Turbo Pro converter-back exhaust
2.5-inch 409 stainless tubing, Turbo Pro mufflers and quarter-panel/side-exit tailpipes. Requires a four-bolt flat converter flange; not for SS models. A ball-and-socket outlet will not fit as supplied. Installation hardware included; tips separate.
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Match what is on the car: This system retains and connects behind the existing catalytic converter. Identify its outlet flange and check tailpipe clearance before ordering. It is not a header-back conversion. LTAC can help check the combination.
03 / Know your combination
The page covers a platform.
Each part has its own fitment.
Which G-body models are listed for these brake kits?
Wilwood’s application list includes Monte Carlo 1979–1988, Malibu 1979–1983, El Camino 1979–1987, Regal 1979–1987, Grand National 1982–1987 and Grand Prix 1979–1987 with the specified factory disc spindle.
Cutlass applications vary by model and trim: Cutlass Calais Base 1979–1984 and Hurst 1983–1984; Cutlass Salon Base 1979–1987; Cutlass Supreme Base 1979–1987 and 1988 rear-wheel-drive only. Other Cutlass trims need a separate check. Do not apply the broad Garage year range to every brake kit.
1978 cars, front-wheel-drive models and swapped spindles are not covered by this selection without an individual application check.
What do I need to check before ordering?
Exact model, year and trim; current spindle; wheel diameter, profile and bolt pattern; rear axle/brakes; master cylinder and intended use. The brake hubs support 5 x 4.50 and 5 x 4.75-inch patterns with 1/2-20 studs. Follow the kit’s installation instructions for wheel-to-hub contact and required wheel protection or spacers.
What about cooling, fuel, steering and engine swaps?
Those choices depend on the engine, accessory layout, steering arrangement and intended use. Browse LTAC’s categories if you know your part, or send us your combination for a coordinated parts plan. General category browsing is not a vehicle-fitment filter.
One upgrade or the whole build.
Tell us your year, model, engine, wheels and goals. We’ll help you put the right supporting parts around the pieces you choose.
Talk through your G-body build