just curious as to how you came to this conclusion?? was it something you were told by the previous owner?? not trying to give you a hard time, just curious. i bought my pace car from about the 5th owner who knew little if anyting about it's originality. what i surprise i got when i ordered a copy of the original dealer invoice and found gymkhana suspension was one of only two options (other than the pace car package of options which is pretty inclusive) that were ordered when the car was new!! if i remember correctly it was a $99.00 option (retail) in 1978. dealer cost was $79.00. i feel that the $50.00 i spent for the invoice copy was some of the best research money i have spent to this point. i know where and when the car was built and delivered, and exactly how it was configured when delivered to the original dealer.
steve