..from Jegs..They're suppose to replace stock springs without stock height change?The 92 Gt's rear is sagging from age,(kinda like me-ha)..I've got a Moser rearend-spool 3:55.So,I'm used to sorta a rough ride.Jegs says"not for street use",but everything states that.Would these be OK?I like how one spring is stronger to compensate for the "side" launch problem...I haven't bought them yet,just looking..I'm building a "street machine" from the rear forward,ending with a 350 hp crate motor when the cash is saved....Thanks for any advice.