Jay said "To allow the use of IRS & diffs in this class would add a minimum of $5k to the cost of a car."
I was originally skeptical so I checked my records for the costs associated with the rear suspension and drive for my latest hare brained scheme. I am the king of cheap and the cost for all parts (A arms, uprights, hubs, bearings, drive shafts diff and diff carrier) was $2410. The uprights are heavy steel fabrications from old pieces lying around the shop. Upgrading to uprights from the Pegasus catalog would add about $1100. This would result in $3510 and includes no labor cost or profit. So, I can see $5K for the cost of an independant rear.
I am curious about the equivalent cost of the live axle (axle + bearings + bearing carriers + radius rods and locating links)?
Marty