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Rounded off torx driveshaft bolts!!
tomgregory2000 - 16/1/09 at 10:17 PM

Does anyone have a good way to remove the 6 torx(i bloody hate these) bolts on a 7" sierra dif that hold the driveshafts on as they have kinda rounded off.
All advice welcome

Tommy

mackei23b - 16/1/09 at 10:17 PM

Angry Grinder!

Richard Quinn - 16/1/09 at 10:22 PM

quote:
Originally posted by mackei23b
Angry Grinder!
I'll second that!

Z20let Corsa - 16/1/09 at 10:27 PM

yeah grinder, i had to grind one of thye 12 on mine. ive replaced mine with some allen head bolts. much better me thinks!!!

martyn_16v - 16/1/09 at 10:33 PM

quote:
Originally posted by tomgregory2000
All advice welcome


Hammer and chisel might be easier?

Probably a bit late for you, but don't round them off?

Soak them in WD40/plusgas for a bit before you do anything else. Clean ALL of the crap out of the heads of the bolts so that your socket bit can engage fully. Put the bit in, and give it a good sharp thump on the end with a hammer before you try turning anything.

I've never had a problem doing it this way, even after years of playing with VW's and the silly 12-point XZN bits they use

madteg - 16/1/09 at 10:36 PM

Start with hammer and chisel to start. To close to tank to grind unless its a last resort

stuart_g - 16/1/09 at 10:44 PM

If it is at the diff end of the drive shaft remove the diff back plate and take the circlips off the end of the driveshaft and remove from diff. Take to the workbench and cut the heads off the bolts with a grinder.

tomgregory2000 - 16/1/09 at 10:58 PM

looks like grinder it is, tank is empty, best not drink to much tonight as its going to be a noisy day tomorrow

BenB - 16/1/09 at 11:20 PM

Angle grind the end of the bolts off, remove the Lobro then use stud extractor to remove the stubs (or in my case lots of penetrating oil and some water pump pliers)....

vinnievector - 17/1/09 at 03:28 AM

if you know the dia of the bolts drill off the heads ,start with a old drill first to to knock off the edges on the torx then a nice slow drill speed some cutting oil and a fresh colbalt drill should sort you out ,knock off the heads , if you want to go for the stud exstracker then go for the snap on type or sim they are the best trust me we use em daily .

Peteff - 17/1/09 at 09:02 AM

Cut the heads off with the grinder, remove the joints and there is about 2 inch of stud left to get hold of with the Mole grips. Replace with Allen head bolts. Hit them square on the head with the hammer before you try to undo them next time.

zilspeed - 17/1/09 at 09:52 AM

WEAR GLOVES !!

BE CAREFUL.

Still struggling here with restricted movement in the finger that I messed up with the angle grinder. It was my own fault, but being careful is the answer.

Take care.

jollygreengiant - 17/1/09 at 10:02 AM

Funnily enough I've ALWAYS managed to undo these bolts when rounded off with a GOOD pair of Mole Grips.

Mark Allanson - 17/1/09 at 11:43 AM

Before things get too brutal, a large nut welded over the head ALWAYS get it out, a combination of better grip and leverage and the heat which beaks the corrosion bond on the threads.