Hey gbayless I was told from the guy at Maxxlift "Although the E-Kit is not certified for the earlier models, I know we have had owners of 86-98 E350s, use the 2002 version kit. The 2002 version has the longer replacement bolts and the ability to reverse them. The 2002 also has the same diameter coils as the 98. So I believe you’d be able to make the 2002 kit work." Hope this helps.