Gear box change

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wickford90

wickford90

Well-Known Member
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Location
wickford essex
Looking to put a S3 gear box in my S2, been reading up a bit on this as the bell housings are different if I get a S3 bell housing will it fit and save me changing the " first motion shaft" I will be putting in a new clutch in while its apart.
 
bell housing will fit a series 4 cylinder engine you would need to change slave cylinder position from drivers side to lh of bellhousing ,though you can swap bell housings and input shafts as long as its not a suffix d series 3 box and your not using early small layshaft bearing bell housing
 
So is it better to keep original bell housing and change shaft, is this straight forward to do or does the gearbox need taking apart,as a novice in these matters I need someone to hold my hand.
 
shafts and bellhousings arent interchangeable ,they are as a assembly ,if you just want to fit series 3 box you can with series 3 clutch if flywheel has 3 dowels
 
theres more to it than that ,a few different options to achieve fitting series 3 box ,but depends on what you have and want to do ,it would just be easier to talk
 
Thanks when I pick up the gear box and get It stripped out I will note what flywheel and what the box Nos are. Don't know if the guy selling it has the bell housing.
 
i think the simplest information we need to know is what engine do you have in your Series 2 ?? is it a 2 or 2a

i think the very first S2's had the 2litre petrol from the S1 in them which had different position studs around the bellhousing/flywheel housing

now if you have the later 2.25 engine, i think all of them had the same stud pattern round the bellhousing, this means that to fit a S3 box onto a 2.25 in a 2/2a all you need to do is cut a couple of little webs back on the bellhousing crossmember in the chassis to clear the clutch slave cylinder

obviously you'll also need the correct hoses and pressure plate to match the S3 gearbox

of course again if this gearbox is coming from a sixpot S3 you're back to bellhousing problems as that has the same stud pattern as the S1

i hope that's simplified things
 
NiteMare said:
i think the simplest information we need to know is what engine do you have in your Series 2 ?? is it a 2 or 2a

i think the very first S2's had the 2litre petrol from the S1 in them which had different position studs around the bellhousing/flywheel housing

now if you have the later 2.25 engine, i think all of them had the same stud pattern round the bellhousing, this means that to fit a S3 box onto a 2.25 in a 2/2a all you need to do is cut a couple of little webs back on the bellhousing crossmember in the chassis to clear the clutch slave cylinder

obviously you'll also need the correct hoses and pressure plate to match the S3 gearbox

of course again if this gearbox is coming from a sixpot S3 you're back to bellhousing problems as that has the same stud pattern as the S1

i hope that's simplified things
Click to expand...

Its a 1960 S2 with a 2 1/4 petrol. when i strip it down i will get relevant pare nos
 
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