Brakes
4 of 4 compatibility entries for Honda
Rear disc brake conversion (Integra-style calipers and rotors via Scarebird adapter)
The hub and staked spindle nut are reused; the drum, shoes, backing plate, and drum-specific cable and hose are discarded. The adapter kit ships with 12x1.25 mm x 20mm bolts (bracket to spindle face, 40 LB-FT) and 12x1.25 mm x 25mm bolts (caliper bracket to adapter, 55 LB-FT), all with high-temperature thread locker; the hub bolts torque to 139 LB-FT. Loaded refurbished calipers (e.g. Callahan) include the bleeder, banjo fitting, and parking-brake bracket. The factory hydraulics carry over unchanged -- the OEM 1725 CRX proportioning valve and 13/16 master cylinder gave good front-to-rear balance in testing. The correctly sized parking brake cables come off a 1990-91 Honda CRX Si; the Integra and Civic ones are too long, and CRX Si cable ends fit the Integra-style calipers.
Rear disc brake trailing arm assembly
Rear disc trailing arms from a 99-00 Civic Si, any 94-01 Integra, or a Del Sol bolt onto the drum-brake EG/EK Civic chassis. Trailing-arm and parking-brake-cable lengths are reported to match across 88-91 and 92-95 Civics and 90-93 and 94-01 Integras, so donors are interchangeable. Transplanting the complete trailing arm is simplest; the hub-and-brake-only approach also works and skips the rear alignment. Required extras beyond the arm: matching rear brake pads, rear brake lines (Si or Integra), new parking-brake cables, and the disc-spec proportioning valve plus master cylinder for correct bias. Replace the trailing-arm bushings before installation, confirming the bushing size matches the donor arm.