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Southern Rods & Parts

4-Link Systems w/ 9" Housings

Ditch your leaf springs for QA1 MOD Series Coilovers, triangulated 4-link suspension and an all-new, narrowed 9" rear end. QA1 4-link kits were fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver.

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1955-1958 GM Full Size 7" Dual Zinc Booster Conversion Kit
1955-1958 GM Full Size 7" Dual Zinc Booster Conversion Kit
Part Number: MBM-GMFS1-201
$147.00
1964-1972 GM A, F, X 9" Delco Black Power Brake Booster Conversion Kit (Disc/ Disc)
1964-1972 GM A, F, X 9" Delco Black Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-735
$287.00
1964-1972 GM A, F, X 9" Delco Black Power Brake Booster Conversion Kit
1964-1972 GM A, F, X 9" Delco Black Power Brake Booster Conversion Kit
Part Number: MBM-GM-715
$280.00
GM A, F, X 8" Dual Powder Coated Black Proline Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 8" Dual Powder Coated Black Proline Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-709
$245.00
1964-1972 GM A, F, X Power Brake Booster Conversion Kit 2
1964-1972 GM A, F, X Power Brake Booster Conversion Kit 2
Part Number: MBM-GM-701
$231.00
GM 1967-1980 F Body 8" Dual Powder Coated Black Booster Conversion Kit (Disc/ Disc)
GM 1967-1980 F Body 8" Dual Powder Coated Black Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-413
$266.00
9" Dual Power Conversion w/ Oval Master Cylinder Kit for GM 1964-1972 GM A Body Cars (Disc/ Disc)
9" Dual Power Conversion w/ Oval Master Cylinder Kit for GM 1964-1972 GM A Body Cars (Disc/ Disc)
Part Number: MBM-GM-412
$301.00
GM A Body 8" Dual Powder Coated Black Booster Conversion Kit (Disc/ Disc)
GM A Body 8" Dual Powder Coated Black Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-411
$266.00
GM 1967-1980 F Body 8" Dual Powder Coated Black Booster Conversion Kit (Disc/ Drum)
GM 1967-1980 F Body 8" Dual Powder Coated Black Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-403
$259.00
9" Dual Power Conversion w/ Oval Master Cylinder Kit for GM 1964-1972 GM A Body Cars (Disc/ Drum) 1
9" Dual Power Conversion w/ Oval Master Cylinder Kit for GM 1964-1972 GM A Body Cars (Disc/ Drum) 1
Part Number: MBM-GM-402-B
$303.80
9" Dual Power Conversion w/ Oval Master Cylinder Kit for GM 1964-1972 GM A Body Cars (Disc/ Drum)
9" Dual Power Conversion w/ Oval Master Cylinder Kit for GM 1964-1972 GM A Body Cars (Disc/ Drum)
Part Number: MBM-GM-402
$303.80
GM A, F, X 9" Chrome Power Brake Booster Conversion Kit (Disc/ Disc) 1
GM A, F, X 9" Chrome Power Brake Booster Conversion Kit (Disc/ Disc) 1
Part Number: MBM-GM-353
$329.00
GM A, F, X 9" Chrome Power Brake Booster Conversion Kit (Disc/ Drum) 1
GM A, F, X 9" Chrome Power Brake Booster Conversion Kit (Disc/ Drum) 1
Part Number: MBM-GM-352
$329.00
GM A, F, X 11" Dual Chrome Power Brake Booster Conversion Kit (Disc/ Disc)
GM A, F, X 11" Dual Chrome Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-351
$329.00
GM A, F, X 11" Dual Chrome Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 11" Dual Chrome Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-350
$329.00
GM A, F, X 11" Chrome Power Brake Booster Conversion Kit (Disc/ Disc)
GM A, F, X 11" Chrome Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-343
$315.00
GM A, F, X 11" Chrome Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 11" Chrome Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-342
$315.00
GM A, F, X 9" Chrome Power Brake Booster Conversion Kit (Disc/ Disc)
GM A, F, X 9" Chrome Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-341
$315.00
GM A, F, X 9" Chrome Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 9" Chrome Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-340
$315.00
GM A, F, X 8" Dual Chrome Power Brake Booster Conversion Kit (Disc/ Disc)
GM A, F, X 8" Dual Chrome Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-330
$315.00
GM A, F, X 8" Chrome Flat Top Master Power Brake Booster Conversion Kit (Disc/ Disc)
GM A, F, X 8" Chrome Flat Top Master Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-328
$329.00
GM A, F, X 8" Dual Chrome Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 8" Dual Chrome Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-311
$315.00
GM A, F, X 8" Chrome Flat Top Master Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 8" Chrome Flat Top Master Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-309
$329.00
1964-1972 GM A, F, X Power Brake Booster Conversion Kit 1
1964-1972 GM A, F, X Power Brake Booster Conversion Kit 1
Part Number: MBM-GM-305
$315.00
1964-1972 GM A, F, X 7" Dual Chrome Power Brake Booster Conversion Kit
1964-1972 GM A, F, X 7" Dual Chrome Power Brake Booster Conversion Kit
Part Number: MBM-GM-304
$315.00
1964-1972 GM A, F, X Power Brake Booster Conversion Kit
1964-1972 GM A, F, X Power Brake Booster Conversion Kit
Part Number: MBM-GM-303
$329.00
1962-1967 Nova 3 Stud Booster Conversion Kit (Disc/ Drum)
1962-1967 Nova 3 Stud Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-233
$196.00
GM A, F, X 9" Single Zinc Power Brake Booster Conversion Kit (Disc/ Disc)
GM A, F, X 9" Single Zinc Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-217
$210.00
GM A, F, X 8" Dual Zinc Power Brake Booster Conversion Kit (Disc/ Disc)
GM A, F, X 8" Dual Zinc Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-215
$217.00
GM A, F, X 7" Dual Zinc Power Brake Booster Conversion Kit (Disc/ Disc)
GM A, F, X 7" Dual Zinc Power Brake Booster Conversion Kit (Disc/ Disc)
Part Number: MBM-GM-211
$210.00
1964-1972 GM A, F, X 9" Power Brake Booster Conversion Kit
1964-1972 GM A, F, X 9" Power Brake Booster Conversion Kit
Part Number: MBM-GM-209
$203.00
GM A, F, X 9" Single Zinc Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 9" Single Zinc Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-208
$203.00
GM A, F, X 8" Dual Zinc Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 8" Dual Zinc Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-207
$210.00
GM A, F, X 7" Dual Zinc Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 7" Dual Zinc Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-204
$203.00
GM A, F, X 7" Dual Zinc Bottom Mount Power Brake Booster Conversion Kit (Disc/ Drum)
GM A, F, X 7" Dual Zinc Bottom Mount Power Brake Booster Conversion Kit (Disc/ Drum)
Part Number: MBM-GM-203
$203.00
1973-1978 Ford Truck (F-Series) Powder Coated Conversion Kit Disc/ Drum
1973-1978 Ford Truck (F-Series) Powder Coated Conversion Kit Disc/ Drum
Part Number: MBM-FT-700
$308.00
1957-1977 Ford F Series Truck Booster Conversion Kit
1957-1977 Ford F Series Truck Booster Conversion Kit
Part Number: MBM-FT-207
$189.00
1973-1978 Ford Truck (F-Series) Chrome Conversion Kit Disc/ Drum
1973-1978 Ford Truck (F-Series) Chrome Conversion Kit Disc/ Drum
Part Number: MBM-FT-300
$343.00
1973-1978 Ford Truck (F-Series) Zinc Booster Conversion Kit Disc/ Drum
1973-1978 Ford Truck (F-Series) Zinc Booster Conversion Kit Disc/ Drum
Part Number: MBM-FT-200
$238.00
1963-1970 Chevy C10 Truck Rear 5 Lug Disc Brake Kit #2
1963-1970 Chevy C10 Truck Rear 5 Lug Disc Brake Kit #2
Part Number: MBM-DBK1012TRK-5LX
$476.00
1963-1970 Chevy C10 Truck Rear 5 Lug Disc Brake Kit #3
1963-1970 Chevy C10 Truck Rear 5 Lug Disc Brake Kit #3
Part Number: MBM-DBK1012TRK-5
$504.00
1963-1970 Chevy C10 Truck Rear 6 Lug Disc Brake Kit #4
1963-1970 Chevy C10 Truck Rear 6 Lug Disc Brake Kit #4
Part Number: MBM-DBK1012TRK-LXB
$504.00
1963-1970 Chevy C10 Truck Rear 6 Lug Disc Brake Kit #5
1963-1970 Chevy C10 Truck Rear 6 Lug Disc Brake Kit #5
Part Number: MBM-DBK1012TRK-LXR
$504.00
1963-1970 Chevy C10 Truck Rear 6 Lug Disc Brake Kit #6
1963-1970 Chevy C10 Truck Rear 6 Lug Disc Brake Kit #6
Part Number: MBM-DBK1012TRK-LX
$504.00
1963-1970 Chevy C10 Truck Rear 6 Lug Disc Brake Kit #7
1963-1970 Chevy C10 Truck Rear 6 Lug Disc Brake Kit #7
Part Number: MBM-DBK1012TRK
$420.00
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