Re: 1965 Seven S2
Posted: Sun Oct 25, 2020 8:47 am
Heres the information I found when I started to research how to improve reliability of the Standard 10 axle, the man it seems in the US Chris Beebe.
He uses the Std 10 axle but replaces the original centre with a 4 speed TR7 centre I understand Spitfire and GT6 are the same centres, and he then shortens the TR7 axles. you have to fit bigger studs into the axle casing for the centre housing for the TR7 centre section there are a range of ratio's available, 3.9 or 4.1 typically used, but you can go longer if you plan on cruising distances using GT6 ratio. The TR7 centre has the same bolt pattern. Another worthwhile modification is to use a ball joint A Frame as this significantly reduces the twisting loads off the axle casing.
He also makes offset trailing arms with rod ends to allow adjustment and clear the tires better, has his own welded on spring perches that are much simpler and lighter, he ensures the axles are straight then adds some negative camber.
The beauty of this is it looks original, uses readily available cheap centre, in Australia you can get a TR7 from Wreckers for peanuts, has same standard 3.75" PCD, runs same brakes.
My car is as it left the factory, it does not have a stiffening plate fitted, although I have purchased one to fit on the axles I've sourced.
If you go down this route, I'd be very interested in getting his details and purchasing the axles, wheels studs etc.
Cheers
Vaughan
He uses the Std 10 axle but replaces the original centre with a 4 speed TR7 centre I understand Spitfire and GT6 are the same centres, and he then shortens the TR7 axles. you have to fit bigger studs into the axle casing for the centre housing for the TR7 centre section there are a range of ratio's available, 3.9 or 4.1 typically used, but you can go longer if you plan on cruising distances using GT6 ratio. The TR7 centre has the same bolt pattern. Another worthwhile modification is to use a ball joint A Frame as this significantly reduces the twisting loads off the axle casing.
He also makes offset trailing arms with rod ends to allow adjustment and clear the tires better, has his own welded on spring perches that are much simpler and lighter, he ensures the axles are straight then adds some negative camber.
The beauty of this is it looks original, uses readily available cheap centre, in Australia you can get a TR7 from Wreckers for peanuts, has same standard 3.75" PCD, runs same brakes.
My car is as it left the factory, it does not have a stiffening plate fitted, although I have purchased one to fit on the axles I've sourced.
If you go down this route, I'd be very interested in getting his details and purchasing the axles, wheels studs etc.
Cheers
Vaughan