1970 Boss 429 Mustang Master Chassis OEM Correct Bolt Kit – Disc Brakes(355 pcs)
Overview
Restore your 1970 Boss 429 Mustang with confidence using this OEM Correct Master Chassis Bolt Kit engineered for concours-level fit and finish. Every fastener mirrors original Ford specifications, ensuring uniformity, authenticity, and long-term durability throughout the chassis and drivetrain.
This 355-piece set replaces old, mismatched, or rusted hardware with high-quality reproductions packaged by system for easy identification. Ideal for restorers, shops, and collectors who demand accuracy for the legendary Boss 429 platform.
What’s Included
Sub-Kits Included (with original component descriptions)
ACCEL BELLCRANK > FIREWALL — HXWA AB screws
AXLE HOUSING > SPRINGS — 5 3/4" U-bolts, flange nuts
AXLE RETAINER PLATES – 250 & 8 CYL — T-bolts, lock nuts
BRAKE BOOSTER > FIREWALL — HX split SEMS, flange nuts
BRAKE CABLES > BODY — retaining clips, HX nuts
BRAKE CALIPERS > SPINDLE — drilled Grade 8 bolts, split washers
BRAKE DRUM RETAINERS — green push-on retainers
BRAKE HOSE > AXLE HOUSING – 428CJ & Boss — HX bolt, split washer
BRAKE HOSES (Disc) > BODY — HXWA C screws, U-clip
BRAKE LIGHT SWITCH — retaining pin
BRAKE ROTOR SHIELDS — HX external SEMS
COIL SPRING SEATS (Perches) — lock nuts
CONTROL ARMS (Lower) — Grade 8 cam bolts, red nuts, washers
CONTROL ARMS (Upper) — Grade 8 1/2-13 knurled bolts, red nuts
CROSSMEMBER (Front Tubular) — special HX countersunk bolts
DIFFERENTIAL CARRIER > HOUSING — red lock nuts, copper washers
DRIVESHAFT – V8 / 6 CYL / 67–68 A/T / All 69 > — 5/16" U-bolts, lock nuts
ENGINE INSULATOR > BODY BRACKETS – Boss 9 — special UBS flange bolts & nuts
ENGINE INSULATOR & BLOCK BRACKETS – 429 — special flange bolts, lock nuts
ENGINE MOUNTS > BODY – V8 — UBS flange bolts & nuts
ENGINE OIL COOLER > BODY — HX conical & peripheral SEMS, serrated flange nut
EXHAUST HANGERS – Dual (Transverse Muffler) — carriage bolts, HXWA screws, flange nuts
GAS CAP (Pop-Open) — PH flat A screws
GAS TANK — HXWA AB screws
GAS TANK FILLER NECK w/ TWIST CAP — HXWA B screws
GREASE PLUGS – CHASSIS — HX plugs
IDLER ARM — HX bolts, lock nuts, clipped washers
LEAF SPRING MOUNTING @ FRONT — flange bolts & nuts
MASTER CYLINDER w/ POWER BRAKES — flange nuts
P/S CYLINDER BRACKET > BODY — HX bolts, lock nuts, washers
P/S HOSE SUPPORT INSULATOR RETAINER — HXWA screws
P/S OIL COOLER – Boss 302/429 & 428CJ — HXWA TT screw
PARKING BRAKE CONTROL > BODY — HXWA serrated screws
PITMAN ARM > GEAR BOX — HX jam nut, split washer
PROPORTIONING VALVE > APRON — UBS flange nuts
SHOCK BRACKETS (Front) — low-head carriage bolts, flange nuts
SHOCKS (Front) — HX external SEMS “Anchor”, 5/16-18 nuts, washers
STABILIZER BAR (Front) BRACKETS — HX conical SEMS, lock nuts
STABILIZER BAR (Front) BRACKETS — UBS flange bolts “F” & flange nuts
STABILIZER BAR (Front) END LINKS — bolts, retainers, bushings, spacers, nuts
STEERING COUPLING 11/4/68 > — 12-pt bolt, 5/16-18 lock nuts
STEERING GEAR BOX — Grade 8 HX bolts, clip flat washers, split washers
STEERING LINKAGE w/ PS – 69 HD, All 70 — slotted nuts, cotter pins, flat washers
STRUT ROD THREADED ENDS > BODY — lock nuts
STRUT RODS > LOWER CONTROL ARM — 1/2-13 special knurled bolts, nuts, pins
SUSPENSION BUMPER (Rear) — lock nut
TRANS CROSSMEMBER — UBS flange bolts & nuts
TRANS INSULATOR – All — included as part of master kit combination
WHEEL CYLINDERS (Pair) – 250 & All 8 CYL — 5/16-18 HX external SEMS
Common Uses
Complete exterior sheet-metal restoration
OEM-correct Mustang chassis rebuild projects
High-accuracy concours restoration
Shipping & Guarantee
Ships from Winchester, VA
60-Day Returns
SKU: 70Z-HDBG(1125)
We won’t screw you, but our fasteners will!™
1970 Boss 429 Mustang Master Chassis Bolt Kit | OEM Correct | East Coast Bolts