What diff does a Series 1, 1998 VT S pack have?

[luvaofcarz]

Hey Guys,

I am just wondering what diff is in my Series 1, VT S pack. I am interested in changing it and am just wondering whether:
1) it is worth changing the diff gears
2) whether or not my diff is the IRS or the LSD as well. Is there any way I can tell?

Thanks.

[SMIT]

hey mate will be irs, i doubt it will be lsd, unless option, please do a search there is massive thread with pics on how to identify if you have an lsd.

[luvaofcarz]

Yeah I have done the search and stuff, it has been pissing down rain lol so I couldn't be bothered going outside, I thought it would be IRS, is it worth changing it to IRS and LSD?