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Old 26th February 2015, 19:39
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It was over 15 years ago that I rebuilt the car (and engine/box were replaced at least once after that) but you'll need to check the back axle ratio - here's some info for you:

early overdrive box (up to chassis 93/2477 - type 5 box with LH type overdrive - sometimes called the type Z as it was apparently fitted to the Zodiac?)

1st 3.163:1
2nd 2.214:1
3rd 1.412:1
o/d 3rd 1.158:1
4th 1:1
o/d 4th 0.82:1
axle 4HA 3.31:1 (first 500 cars had a 7HA with 3.58)
26.7 mph @ 1000 rpm in o/d 4th

later overdrive box (hybrid Type F box with J type overdrive)

1st 3.163:1
2nd 1.95:1
3rd 1.412:1
o/d 3rd 1.098:1
4th 1:1
o/d 4th 0.778:1
axle 4HA 3.31:1
28.1 mph @ 1000 rpm in o/d 4th

4 speed (type 5 box):

1st 3.163:1
2nd 1.95:1
3rd 1.412:1
4th 1:1
axle 4HA 3.07:1
23.7 mph @ 1000 rpm in 4th

Also remember that the overdrive clutches are hydraulic but the 4 speed is cable (there was a hydraulic Bellhousing available from Ford but rare now) so the pedal etc needs modifying. Both the 4 speed and the 3.07 axle (if you have one) are getting rarer and sought for sprint cars.

Last edited by scimjim; 28th August 2018 at 13:22..
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