I am selling a new Rear Suspension Upgrade kit (RTSM-8MM) from Performance Unlimited that I originally bought for my SPF #1358.
This kit fits early cars to #1670 with (4) 8mm frame bolts, and converts 2 supension bolts per side to 4 per side.
http://performanceunlimited.com/cobr...sionmount.html
$200 shipped