i have bought a "book" chassis which was obviously made to take the escort live axle..

i am planning to use the sierra irs and was wandering what the best/easiest way of doing it is..

i have bought the haynes roadster book and was thinking of copying the rear craddle (adding 20mm) and grafting this in to rear..

i know i will need wider rear arches to cover the wheels but would prefer to keep standard driveshafts...

any input gratefully recieved

cheers gavin

Have you also considered a DeDion rear end?? Might be a simpler conversion to do (although i am not talking from experience)

i am willing to consider anything!!!

do you mean fitting the original rear beam

as is....

There have been a lot of posts on here about IRS v De Dion, and I do not intend entering that bear-pit. I would do which ever is easiest given your set up as the arguements for both run pretty deep. I bought a part built with de dion and was going to go IRS till I read all the posts on the subject and decided to stay as it was - not that I'm saying it's 'better' anyone......

If your interested in going de-dion - have a chat with me. I'm in the middle (well near the end) of the conversion.

Not difficult - depends on what you want to achieve, nice looks or effective?

Basically you need to make a diff mount, put new trailing arm bracket on and modify two rear tubes.

(or if you're me - make a whole new set of trailing arms mounts for interchangable live or de-dion axle, modify the rear end to look more caterham esque and make a detachable diff mount.)