Converting to 5x115 in the rear of 88

Dough19 · Post by **Dough19** » Thu Dec 28, 2006 11:55 pm

So I have been looking at a lot of different rims and was thinking about trying to convert the rear to 5x115 so that I could use the 16x8 rims from a grand prix. I figure I need at least 8 inches in width to run a 245 or larger series tire. I know that it won't be easy since the spindle is completely different. I found a post on the "other" forum where there are pic of someone who supposedly put grand am wheel bearings on the 88 rear. http://www.fiero.com/forum/Archives/Arch ... 52920.html

Would this method work??

Also I was wondering if I could possibly press in the outer half of a 5x115 bearing onto the fiero bearing. My father works at a machine shop and said that he could remove the portion of the bearing with the studs on it.

If I can't figure out how to make it work, then I might end up buying the rots slipsteam rims where I could get 17x8.5in rims for the rear and 16x7 for the front.

Series8217 · Post by **Series8217** » Fri Dec 29, 2006 12:43 am

If the bearings were the same you could theoeretically press the other pattern hub into the Fiero one.. but the inner bearing race is part of the flange piece, so they'd have to the same..

Series8217 · Post by **Series8217** » Fri Dec 29, 2006 5:11 am

One thing I have wondered is if the aftermarket hubs use the same bearings even if the factory ones don't. The aftermarket hubs for the Fiero have a much different design than the GM ones, with the bearing race NOT integrated into the flange portion if I remember correctly. They just press through the inner bearing races. If the aftermarket ones do indeed use the same bearings and different flange sections you may be able to swap them.