66rmack Posted September 5, 2016 Share Posted September 5, 2016 My boss has a 88 superliner. And is wondering if a 425 65 22.5 will fit without clearance issues. Also if someone is running that setup if I can get the correct wheel offset. Or a wheel part # that would be great. Thank you in advance. Quote Link to comment https://www.bigmacktrucks.com/topic/46719-tire-size/ Share on other sites More sharing options...
AZB755V8 Posted September 6, 2016 Share Posted September 6, 2016 This is my Super with 425's. The other photo in Wheelbase is with Aussie fender flares. Quote Link to comment https://www.bigmacktrucks.com/topic/46719-tire-size/#findComment-344823 Share on other sites More sharing options...
kscarbel2 Posted September 6, 2016 Share Posted September 6, 2016 A 425/65R22.5 tire runs a 12.25 inch wide rim. I assume your Super-Liner was built with 8.0, 8.25 or 8.5 inch wide rims. Had the truck been ordered that way from Mack, the steering arms that mount to the knuckles would be different, as well as the tie rod tube. As is, you're not going to have needed clearance for 425/65R22.5 tires with what you have. I don't know what Volvo does today. But in the days of Mack Trucks, your dealer could submit a changeover request for your exact model and serial number truck with Mack's legendary specifications department (within Parts Operations), and they would advise your dealer what parts (mounting arrangements) would have applied had the truck originally been ordered that way. The dealer could then order you the correct needed parts. If you are "serious" about doing the changeover, you can ask the folks at Watts Mack, or your local dealer, if Volvo's Mack Trucks still processes changeover requests. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/46719-tire-size/#findComment-344829 Share on other sites More sharing options...
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