Hi Phill, I used a local spring manufacturer here in SA to make me new U bolts whilst they reset my springs, I had my old shackles which I used as a reference and they measured 90mm from bolt centre too bolt centre , so thats what I purchased from a supplier thinking they were correct, I still have probably 4 threads to go on the U bolts before I runout of them to pull up the plate ! but dam there tight, I will add I have new KYB gas adjusts all round ! maybe thats half my problem !