Replacing 66 steering box
Thread Starter
Racer
Joined: Jan 2002
Posts: 274
Likes: 2
From: Prescott,Az
Replacing 66 steering box
Need some advise here for my 66 Restorod.I am planning on replacing my original steering box with one made by AGR sold by Summit Racing ($329.95) and upgrading the steering column to a chrome Flaming River tilt model.I believe that the ratio I have now is 15.5:1,manual was 16.5:1.I have power steering so I automatically got the faster ratio when I bought the car new.I want the steering to be quicker and AGR offers a 12:1 and a 14:1.I generally find that when you buy something there is always an upside and a downside to a change;the upside is that the steering will respond faster, the downside is that turning the wheel will require more effort with the faster ratio.This increased effort may be exaggerated by the fact that I replaced the original 16" teak wheel with a 14" Grant wheel.Have any of you had any experiences on this change,if so please respond.(The Summit guy told me that the car may be too "darty" with the 12:1 and suggested the 14:1 as a compromise.)
Drifting
Joined: Nov 2003
Posts: 1,645
Likes: 65
All 66 steering boxes are the same, faster steering is controlled by the position of the linkage ( if I remember correctly it is the Pittman arm in the center like, someone chime in if I have this wrong ). AS far as to fast a ratio I can not comment, but someone else must have an opinion.
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
All midyear steering gears are 16:1. Overall ratio is 20.2:1 with the tie rods in the rear holes (manual setting), and 17.6:1 with the tie rods in the forward (fast/power steering) holes. 
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
Drifting
Joined: Sep 2007
Posts: 1,369
Likes: 0
From: Detroit MI
The gear boxes are all the same but the ratio changes by which hole you put your tie rod end in in the steering arm on the knuckle!!
