IRS hub nut

Simonpfhc · Post by **Simonpfhc** » Fri Jun 28, 2013 3:35 pm

Hi,

Can someone kindly let me know what size the hub nuts are on the IRS? My largest socket is 1" and it's too small.

christopher storey · Post by **christopher storey** » Sat Jun 29, 2013 8:42 am

I think, but am not certain, that they are a 3/4 UNC nut and require a 1 1/8" AF socket . I have checked with the part numbers but this is equivocal because it appears to show a 9/16 nut which would require a 7/8 spanner, which plainly is not the case on your car, and which does not agree with my recollection. Your best bet is to measure the nut with a caliper

Simonpfhc · Post by **Simonpfhc** » Sat Jun 29, 2013 10:07 am

Thanks Christopher, much appreciated. I can't easily measure the nut due to how far it is set into the hub :-(

Simonpfhc · Post by **Simonpfhc** » Sat Jun 29, 2013 11:10 am

I've tried to measure it and it looks like 1 and 5/16".

Can anyone else confirm this?

Thanks.

neil4444 · Post by **neil4444** » Sat Jun 29, 2013 1:35 pm

Hi Simon,

If you mean the castellated nut which holds the splined hub on, I just checked and Chris's recollection is correct - it takes 1-1/8" socket.

Cheers,

Neil

christopher storey · Post by **christopher storey** » Sat Jun 29, 2013 5:40 pm

Simon : no, it is definitely not 1 5/16 because this is the size of the socket which fits the front pulley nut which is the biggest on the car ! I have a mini driveshaft nut socket ( which used to be available in all factors ) which fits the pulley nut

Simonpfhc · Post by **Simonpfhc** » Sat Jun 29, 2013 6:08 pm

Christopher/Neil,

Really appreciate your replies - looks like I need to buy two new sockets then, a 1 and 1/8" for the castelated hub nuts and a 1 and 5/16" for the crank pulley :-)

Thanks.

christopher storey · Post by **christopher storey** » Sun Jun 30, 2013 9:53 pm

Simon : I hope I have not misled you about the pulley nut socket size - it could be 1.5 inch !! Again, best to measure it across the flats and use the on-line size converters to see what you need

abowie · Post by **abowie** » Sun Jun 30, 2013 10:57 pm

Hub nut 1 1/8.
Crank nut 1 5/16.

Simonpfhc · Post by **Simonpfhc** » Mon Jul 01, 2013 6:44 am

Thanks all for the help, really appreciated :-)

Now, where is that impact wrench...........

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