Page 1 of 1
How do you identify rear IRS arm?
Posted: Sun Feb 15, 2015 3:40 am
by langan
Trying to order Empi rear disk kit. 2 to chose from 1 is for 68 and up plus 68 swing and the other for 73-79. Ran my chassis numbers and they say 1963.
Re: How do you identify rear IRS arm?
Posted: Mon Feb 16, 2015 12:08 pm
by ManxManiac
1963 would of course be swingaxle! Maybe someone converted the rear to IRS??? I do not recall any "lug bolt hole" differences, as all IRS 4 bolt lug holes are 14mm & the bolt circle is the same!
Re: How do you identify rear IRS arm?
Posted: Mon Feb 16, 2015 12:18 pm
by ManxManiac
I just checked the CB Performance website & the only differences they mention are:
1967 & down swingaxle "short axle"!
1968 only swingaxle "long axle"!
1969 & up IRS!
All of these rear disc brake kits are 4 lug!
I've heard of too many problems with EMPI disc brake kits... the ones from CB Performance are much better quality! However, there are other companies that manufacture & sell quality kits too!
Re: How do you identify rear IRS arm?
Posted: Wed Feb 18, 2015 4:22 pm
by jsturtlebuggy
Emergency brake cable length may be why you are seeing different kits for the IRS disc brake kits.
In a shorten buggy chassis it won't make a differences as you have to shorten cables.