CV driveshaft - what size splined tool?

[aogrady]

Hi!

Gonna change my driveshafts at the weekend, weather permiting, order a hex tool and new bolts, but then noticed that the other end of the driveshaft looks like it has splined bolts

Question is what size splined tool do i need to buy please?

Cheers!

Alistair

 

[Weaner]

The allen screws are 6mm and the torx screw's are 8mm torx, make sure the bolts are cleaned out of crud and grease as the socket will round out the centre if not all the way in.
Then a good drill will take the head off the bolt, just changed both driveshaft's and it wasn't
fun as the last owner had already rounded out most of the allen screw's, but found the torx will hammer in and undid several without the drill
good luck

 

[aogrady]

The allen screws are 6mm and the torx screw's are 8mm torx, make sure the bolts are cleaned out of crud and grease as the socket will round out the centre if not all the way in.
Then a good drill will take the head off the bolt, just changed both driveshaft's and it wasn't
fun as the last owner had already rounded out most of the allen screw's, but found the torx will hammer in and undid several without the drill
good luck

Hi!

Cheers for the confirmation, will buy one tomorrow, not looking forward to this, i can see me having hammered thumbs and a very short fuse at the weekend!

I have cleaned the allen 6mm and they look ok, not tried to shift any yet though.

:roll:

Alistair

 

[mattp]

Al, looks like I send you a link to the correct tool -it is an 8 as was using this last night to put the b.box in my van.

 

[aogrady]

Al, looks like I send you a link to the correct tool -it is an 8 as was using this last night to put the b.box in my van.

Cheers Matt,

You're right, i recall the link, i was just checking, just took me all week to remember. Found a local motor factor with some decent long length allen/spline tools which will fit on my 1/2 drive, I have a 3/8 adaptor, and also a breaker bar, and bought a torque wrench, so should ready.....

Of course, I do realise it'll go tits up..........but i have cider in the fridge, so all won't be lost.

Hope the box works out well m8

Cheers!

Alistair

 

[Wannabay]

Don't forget the plus gas, WD40 or similar!
I swapped one CV shaft over without too much trouble, about 2 hours, but rounded out one of the 6mm allen heads on drive end of the other CV driveshaft and it has proved impossible to shift.........so far. Maybe try the 8mm hex as suggested above
Good luck and let us know how you get on
Gerry

 

[sparkywig]

If you round out the heads, a very good set of groove-lock grips will move the little f*ckers.

 

[BJ1]

If anyone is still looking at this thread, remember that you need to clean out the screw head sockets completely before tapping in the key or torx bit. Otherwise they will round out easily. The tip of using good quality Mole grips is spot on - I usually use these at the same time I use the key in the head - never fails!

 

[aogrady]

Hi!

Right, got the drive-shafts done, took quite a long while, but straightforward. All the bolts came undone, they were all allen head, not spline as i though, they were just full of crud, one word of advise, try to get the allen tool at straight on as possible, as you may find it's easier to gedt it to slip it if you aren't careful. I managed to get one bolt to mash up as it slipped out slightly, i didn't realise it was slightly wonky till too late.

As long as the wheel is all the way down on the suspension, the shafts fall out quite well once all bolts removed. Tip, offer up the new shaft, and fit one bolt to the bottom on the cv joint to keep him in place, then it's easier to offer it up to the gearbox end, then jack the suspension up so the shaft is level, making it easier to get the bolts in., Make sure when you torque them up, the splined or hex tool is dead straight, it's easy to round off, especially if you have a long hex/spline tool as it will move when you apply force.

Can't stress enough, as been mentioned to make sure the bolts are clean, before and after fitting, they are really easy to round off.

Cheers!

Alistair