Hi Todd
1:
The 1500 box and 1850 box are different, they use a different input shaft
and a different bell housing, rest of the box is the same possibly with the
exception of the ratio's for 1st 2nd and 3rd gears, the speedo drive may be
a different no of start on the spiral and a different no of teeth on the
pinion. The overdrive units are possibly fitted with different springs and
relief valves otherwise they are the same.
If you want to know ratios and speedo drive and springs and valves I will
look them up later for you.
2:
No idea!
3:
Not sure about gotchas, but one real benefit is you could safely put the
2500 torque through this box without eating gearboxes like they are going
out of fashion! I think the clutch actuation could be solved using the
Dolomite Sprint arm and cylinder bracket, it mounts tight in on to the
gearbox and has the lever pointing upwards instead of mounting on the engine
with the lever pointing down.
Graham.
----- Original Message -----
From: "WILSON,Todd"
Subject: A few unrelated Triumph Questions
> Hi All,
>
> Long time lurker surfacing to pose a few questions to the learned souls
> on this list.
>
> Question 1: Is there any difference between a Dolomite 1500HL overdrive
> gearbox and a Dolomite 1850HL overdrive gearbox?
>
> Question 2: Has anyone measured the weight difference between a Mk3
> Spitfire and a GT6+ with a Spitfire body? Or to ask it another way, has
> anyone measured the difference in weight between the 1296 engine +
> gearbox + ancillaries and the 2000 engine + gearbox + ancillaries. I'm
> trying to work out the weight gain to the front of my Spitfire Mk3 by
> having the 2L six in it - so I can try to at least remove some of the
> additional weight through lightening (I'm dreaming I know).
>
> Question 3: I know that a few people have fitted the saloon gearbox in a
> GT6 - besides the weight gain and having to mod the tunnel cover what
> other gotchas are involved? I suspect the clutch activation arm will
> foul the chassis.
>
> Any help with the above very much appreciated.
>
> Cheers,
> Todd Wilson
> Spitfire Mk3 partly converted to GT6 specs, mostly butchered, in lots of
> pieces...
> [http://www.gt6.com]
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