Integra power-steering pinion assembly (quick-ratio steering)
into Civic EK

DC2 Integra 1998-2001
→
EK Civic EK 1996-2000

Yes: the Integra power-steering pinion assembly (quick-ratio steering) from the Integra (1998-2001) fits the Civic EK (1996-2000) — moderate difficulty, modifications required.

Verdict
Fits.
Verified entry · modifications required
Verified ✓
Difficulty
Moderate
Mods
Required
Category
Suspension

Installation notes

Yes — the power-steering pinion from a 1998–2001 Acura Integra (DC2) fits the power-steering rack of a 1996–2000 Honda Civic (EK) as a quick-ratio steering upgrade, with the Civic shims retained. Both racks use the same rack gear, but the Integra pinion has 9 teeth against 8 on the Civic power-steering pinion (7 on the Civic manual rack). The Coryinmotion write-up gives the change as about 17.7:1 to 16.1:1 and 3.6 to about 3.1 turns lock to lock. The original Honda-Tech thread reports 3.2 turns lock to lock with the Integra pinion.
ModsMods req.

Required modifications

Swap only the pinion gear assembly from an Integra power-steering rack into the Civic EK power-steering rack. Keep the Civic pinion housing and reuse the Civic shims so the pinion sits at the correct depth; wrong shimming can seat the bearing incorrectly and wear the rack. Power assist is retained. Check toe afterwards. Manual-steering EK cars first need a complete EK power-steering rack and the power-steering column U-joint.

Caution

Important caveats

  • Swapping a complete Integra rack into an EK is a different job; it needs Integra subframe and arm parts and can reduce maximum steering angle.
  • Lock-to-lock figures differ between sources (about 3.1 vs 3.2 turns).
  • Claims that late or Type R Integra racks have an even quicker ratio are unverified; owners who opened them reported identical gears.
  • Steering effort rises slightly with the quicker ratio.
  • No OEM part numbers were confirmed for this entry.

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Reference

D14A1 specs → LEB-H5 specs → D16A6 specs → D16W4 specs → EA specs → EC specs → ED specs → EE specs → EG specs → EK specs → EM specs → EP specs → ER specs → ES specs → ET specs →

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Sources

3 refs
  1. 01 https://coryinmotion.com/2022/quick-ratio-steering-and-hondas
  2. 02 https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/steering-ratio-news-swapping-integra-pinion-assembly-ek-rack-2422762/
  3. 03 https://www.ek9.org/index.php?threads/how-to-build-upgrade-the-steering-rack.67672/
Submitted by FitMyBuild research Added Updated

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