Mind you, the acceleration on the Healey was such that it didn't make much difference whether you got 4th or 4th was slow, or very slightly slower. So going from 3rd O/D to 4th non O/D was a deft piece of handwork.pull the gearlever back then reach for and flick the switch as you're letting the clutch out. My Healey had overdrive, but the switch was on the dash. It was a little slow and seemed to negate any gain from the 3rd O/D gearing, but that may just have been the Triumph box.Ĥth O/D was fine.as good as a 5 speed box! I never really saw the point in 3rd overdrive, although with the overdrive switch on the gear lever, you could go from 3rd O/D to 4th normal whilst pushing the switch back to non-O/D at the same time as pulling the gear lever back, if you see what I mean. Gordon.I used to have an overdrive in my Sprint, but it was the Dolomite version The 3.54 diff combined with the 4 speed box made my +2 a very comfortable and useable car this year touring France. Worth every penny, He did mine as well and no complaints. We got a 3.77 diff (we could not find a 3.54 unit) for ?70 from Stoneleigh last year for a friends Sprint who then took it to Stephenson Transmission Ltd in Preston Lancashire tel no 01772 723325 for a rebuild, new input seal and settup. Stoneleigh Lotus Parts Fair in September is as good a place as ever but you have to know what you are looking for to get a good one. Autojumbles are the best bet or if you know anyone who does 2 litre stock car racing they are always looking to swap a 3.77 for a 3.54. They range in price from ?70 to ?200 depending on who you get them off. The 3.54 diff I aquired came out of an Escort Mexico. the 3.54 uses a 10 tooth pinion and is reputed to be stronger than the former. Anyone got any views one way or the other? gordonlund Second Gearģ.54/3.55 are getting harder to find, the 3.55 was the old Ford type with a 9 tooth pinion. PS I tried this thread in one of my other posts but no takers. Modern ford 5 speed box conversions may have other ideas!! I think though that for overall driveability, the 3.54 dif is by far the best and simplest option. Some gearbox specialist have in the past fitted an overdrive where the 3rd gear slot is.
Apparently they could only be engaged on the top two gears in most applications. Has any one tried a Laycock? 8 forward and 2 reverse gears sound tempting. Trouble is there is not enough room in the chassis of the Elan or +2 to take it without a lot of drastic butchering. Ford fitted them to late export models of Mk2 Escorts I believe which would enable them to mate up to the Corsair 2000E box. A few people have looked into fitting a Laycock overdrive into an Elan.
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