Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSEAGLE1988PREMIER LX, 2.5 ZREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL - ZF 4HP 18COMPONENT DISASSEMBLY & REASSEMBLYBRAKE "D"REASSEMBLY
1988 Eagle Premier LX, 2.5 Z
Brake "D": Reassembly
1988 Eagle Premier LX, 2.5 ZSECTION Reassembly
- Install new "O" rings into piston and insert piston into housing with raised face up. Insert plate spring with convex surface facing plate spring. Insert complete set of brake "D" discs. Begin with spring disc followed by outer disc and lined disc, end with end disc.NOTE: Manufacturer does not provide snap ring thickness information.
- Install .04" (1.0 mm) snap ring. Install measuring bar and dial indicator and zero dial. Manually lift complete set of discs and record clearance. Release clearance for 5 pairs of discs should be .07-.09" (1.7-2.2 mm) and clearance for 6 pairs of discs should be .09-.10" (2.0-2.5 mm). If readings differ from these readings, install correct size snap ring.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.