Uprated Vixen Driveshafts
Discussion
Seabass said:
Is that a weld slap bang in the middle of the crimson CV shafts? 
Don't be ridiculous, it's Araldite that squeezed out when I stuck it all together. Suppose I should have wiped it off really. These shafts were just prototype patterns. One half was line bored and the other machined down, one slipped inside the other as a precision fit and then electric arc welded together. Fitted to car and used for 2000 miles go prove before dismantling and using as. Pattern for GKN to spline cut some "production" shafts.
kabaman said:
@Gamekeeper. Do each of the thinck spacers bolt to the existing flanges and then the shortened driveshaft bolts into those?
How much advantage do the CV driveshafts offer over the splind slider type?
Thanks,
Neil
No , you just unbolt the old shaft and replace with new one using either cap screws or set screws and the obligatory dab of Loctite. How much advantage do the CV driveshafts offer over the splind slider type?
Thanks,
Neil
The main advantage of CV joints is they are fit and forget. You may eventually wear them out on an FWD car but RWD you will be very old before you have a problem, provided the boots dont tear. My old Merc did 440,000 miles and I must admit I had intended to see if the CV,s were ok before I sold it to 2 guys from Croatia but I forgot!The bonus and slightly unexpected advanage is they are a lot quieter than UJ/ sliding spline shafts.
Edited by thegamekeeper on Wednesday 19th October 17:40
I'm missing something obvious...
The CV type is a 6 bolt equal space fitting whereas the flange is a 4 bolt equal (or nearly) fitting. So you've made spacers/convertors to go from 4 bolt to 2 bolt (steel I imagine). But, the bolts for the 4 bolt original type go in from the driveshaft direction towards the flanges whereas these have to be bolted in from the other direction (from the outside in). So surely you have to fit the spacers first then bolt in the driveshaft don't you?
Can you buy the spacers to save yourself the trouble?
I like the idea of this conversion and I could get the lathe up and running...But if I could just buy some spacers and then get the shafts made I'd probably opt for the easier route.
Cheers,
N
The CV type is a 6 bolt equal space fitting whereas the flange is a 4 bolt equal (or nearly) fitting. So you've made spacers/convertors to go from 4 bolt to 2 bolt (steel I imagine). But, the bolts for the 4 bolt original type go in from the driveshaft direction towards the flanges whereas these have to be bolted in from the other direction (from the outside in). So surely you have to fit the spacers first then bolt in the driveshaft don't you?
Can you buy the spacers to save yourself the trouble?
I like the idea of this conversion and I could get the lathe up and running...But if I could just buy some spacers and then get the shafts made I'd probably opt for the easier route.
Cheers,
N
Ladies, Gents fellow Vixen owners,
In order to go forward with this upgrade a bulk purchase would need to be made in order to make it viable.
Interested parties should please contact me offline if order to make a bulk purchase. Please note, interested parties will be required to pay a deposit in order to proceed with the order.
Regards
Darren
In order to go forward with this upgrade a bulk purchase would need to be made in order to make it viable.
Interested parties should please contact me offline if order to make a bulk purchase. Please note, interested parties will be required to pay a deposit in order to proceed with the order.
Regards
Darren
thegamekeeper said:
kabaman said:
@Gamekeeper. Do each of the thick spacers bolt to the existing flanges and then the shortened driveshaft bolts into those?
Neil
No , you just unbolt the old shaft and replace with new one using either cap screws or set screws and the obligatory dab of Loctite. Neil
I think we both assumed from your reply that the six cap screws come right through to connect with the diff flanges.
phillpot said:
thegamekeeper said:
kabaman said:
@Gamekeeper. Do each of the thick spacers bolt to the existing flanges and then the shortened driveshaft bolts into those?
Neil
No , you just unbolt the old shaft and replace with new one using either cap screws or set screws and the obligatory dab of Loctite. Neil
No I think the answer was NO, thats why I posted the second pic showing the U/J driveshaft alongside the CV driveshaft so you could see the identical 4 bolt fixing pattern.
I wont assume you are unfamiliar with the function and construction of the CV shaft. Both types need to have the abilty to increase and decrease their overall length as the suspension moves up and down, and at the same time rotate and articulate through 2 planes. The U/J shaft does this by having the sliding spline in the middle. The CV shaft appears to be solid but does in fact have 2 sliding splines, one at each end concealed inside the joint. The spacer is not there because I got the measurements wrong, its called a plunge spacer and that is what allows the shaft to alter its length and the overall length is within quite strict tolerences. I suspect from your reply you think you can attatch the spacer to the diff or hub flange and then bolt in the shaft and joints. Unfortunately that is not possible because the shaft has to be fixed into the spacer with a circlip at each end (just about visible from photo) to limit its travel within the joint, fitting the circlip would obviously not be possible in the void inside the spacer.
Edited by thegamekeeper on Sunday 30th October 12:37
thegamekeeper said:
I wont assume you are unfamiliar with the function and construction of the CV shaft.
Whilst I understand the function of a CV joint, having only ever changed a couple (and they did attach to the diff with the six cap head bolts) I do not recall the exact construction (struggle to remember what I had for breakfast some days).
I now see that the "big lump" is part of the CV joint and not just an adapter to go from six bolts to four that could be fitted to the diff then the shaft attached to that.
phillpot said:
Thankyou for explaining things.
Whilst I understand the function of a CV joint, having only ever changed a couple (and they did attach to the diff with the six cap head bolts) I do not recall the exact construction (struggle to remember what I had for breakfast some days).
I now see that the "big lump" is part of the CV joint and not just an adapter to go from six bolts to four that could be fitted to the diff then the shaft attached to that.
Stop it! Seriously. Whilst I understand the function of a CV joint, having only ever changed a couple (and they did attach to the diff with the six cap head bolts) I do not recall the exact construction (struggle to remember what I had for breakfast some days).
I now see that the "big lump" is part of the CV joint and not just an adapter to go from six bolts to four that could be fitted to the diff then the shaft attached to that.
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