Check thi site out:-

http://www.blindchickenracing.com/

within their "how to" section they show you how to convert a swing-axle to IRS....not for the feint hearted!

http://www.blindchickenracing.com/How_to/I...Sconversion.htm

These guys also sell extended IRS trailing arm suspension units......for that realy mental off-road high-riding wide track IRS fug that you are all planning!

http://www.blindchickenracing.com/Products...nsion_parts.htm

just thought you might like to know.......f&%k me am I bored at work today :unsure: