How would I lower my 99 C70 1" in the rear the least expensively? Change coils? Thanks.

 

Sand bags in the trunk......haha

Lowering springs is probably the cheapest route and you get the whole car lowered.
I am not sure if you can cut the newer springs.....

Pick a company in this link: https://volvoforums.com/forum/general-volvo-chat-5/volvoforums-resources-thread-7317/
See which is the cheapest....

IPD: http://www.ipdusa.com/Volvo-C70-1998...-1-75-553-568/
EST: http://www.eurosporttuning.ca/mm5/me...Code=VL-C70-su
VIVA: http://www.vivaperformance.com/catal...hp?cPath=78_84
Ect....

 

Thanks. I'm not ruling out the sand bags yet, LOL.