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5 sp conversion

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Bob Claffie

Bob Claffie

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Any old threads relating to 5 speed conversions on big Healeys? Never considered it before but now that my "restored" Healey is back on the road with an inoperative OD that might be a cost effective alternative. Thanks, Bob
 
Comment:
If the early Healeys with a first gear ratio of 3.07 are considered to be so low as to generally be unneeded, the various Toyota boxes with a first gear ratio of around 3.3 to 3.6 must be completely unneeded. The later BJ8 first gear ratio of 2.6 makes first gear much more usable.
D
 
A Lempert or similar 3.5 or a non-overdrive 3.9 rear-end pumpkin swap from the stock 4.11 ratio makes 1st more usable with a Toyota 5 speed.
 
bob, john at "quantumechanics" yes thats how he spells it, has the conversion kits, he recently pressure checked an overdrive and trans i rebuild and we talked about the conversion at length, he also has rebuilt overdrive units, nice guy, knows his stuff, (203) 459-9612
 
Anthony, did he check your OD in the car or on the bench? Mine is full of fluid and I'm going to check out the electrics tomorrow. Claimed to have been rebuilt by the PO. The four speed works fine but when I throw the toggle nothing happens. Turning a zillion rpms at 45 mph (in fourth) is not my idea of fun. Thanks for the clue and #, Bob
 
bob, i brought him the original trans. from my bj7 that id rebuilt, and the original overdrive that was operating well, and also another overdrive that i rebuilt, all deliverd to him as seperate components, he attached each overdrive to the trans and pressure checked each overdrive and ran the trans through its shifting paces, all checked out well but he insisted the new thrust bushing on the new lay shaft was too tight and changed it with a thinner one he was right, he has rebuilt trans. and overdrives, he showed me the conversion kits and rebuilt trans. for the switch over, luckily hes only about 35 min. from my house, was very generous with his time and information.
 
My BT7 is in the road with a trassmision rebuilt ant OD exchange in AH spares.

The thing works bu nothing about perfection, if I have a problem again, I will go for 5sp conversion.

The money I spent in rebuilt make no sense for the hardy gearbox I have
 
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