QuestionQUESTION: I have a main shaft that is bad in my gearbox and am looking at replacing it. Will any of the later model gear boxes other than the 62-70 group work ? Other than victoria british do you have any supplier recommendations ?
ANSWER: Hi Scott,
The only way you will know what other boxes will have the same mainshaft is to check with a parts supplier for the same part number. You might try Moss Motors, The Roadster Factory and Engel Imports. They all have websites.
Howard
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QUESTION: I am sorry I wasn't clear with my question, Since the mainshaft is bad I was think of just changing out the entire gearbox with another and wondered if any of the other year models after '70 would work.
AnswerHi Scott,
Many of the other spitfire boxes will work, but you should do an inspection rather than go by anyone's opinion on what years will work. It's not hard to measure.
1.Look at the end of the first motion shaft as for size. (I think they were all the same but measure to be sure.)
2.count the splines on that shaft. (again I think they were the same)(diameter of shaft too)
3.Measure from the front of the bell housing to the shift lever and to the rear flange for the driveshaft. And measure the bolt pattern. (I think they were all the same) and finally look at the trans mounts. (don't remember if they were all the same or not.
With those few measurements you can be sure it will fit and you don't have to depend on someone else's opinion.
I hope this helps.
Howard
