im new to the site and this question might have been answered but i didnt see it, im lookin to get new rims and been reading up on how offset can change the performance of suspension and other things. dont know if its right but what ive read is the offset of my stock rims are plus 12 the rims im looking at are -47 not sure but it seems like those would not be a good choice, i guess what im getting to is how far negative can i go to have the performance of everything not change?

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2005 ford ranger fx4 level 2 4.0 5 speed
stock/aftermarket black head lights,corner lights,and tail lights
billet grill painted black