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Jul 21st, 2025 | | | | Joined: Oct 2002 Posts: 99 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2002 Posts: 99 | What is the largest tire diameter that can fit on a stock height 55-57 Chevy truck with stock rims? This is overlooking all drive train power issues and focusing strictly on fender and frame clearance.
Neil
1955 Chevy 3200
| | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | the width of the stock rim will limit the tire size before the body/frame is an issue, although fatter car radials will rub the drag link/pitman joint on hard left turns ... if you can find a narrow profile, about 30-32" is as much as you can expect I think, about stock height .... 700R15LT for me, 16" LT's might get a bit higher Bill | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | I would agree with the size range. I have 30" tires on mine. Another thing that will be a limiting factor will be what type of tire construction you want. Radials will be limited to about a 27-28" tire for a stock 15" rim, anything taller will be too wide for the stock wheel. 16" wheels open up more choices, with the 215/80/16 or 235/80/16 being the largest narrow choices.
Bill Burmeister
| | | | | Joined: Jan 2008 Posts: 239 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2008 Posts: 239 | My truck has later model, 70's era stock wheels on it. I think they're 15x6.5. I bought it with 30x9.50s on the rear, P.O. had had them on the front also so he said. No signs of prior rubbing in the fenders.
Devin
If you can't hose it out it ain't a truck
55 3100
63 Corvair Monza
64 El Camino
72 240Z
01 Suburban
| | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | 30x9.50x15 fits very nicely in the TF trucks. However, a 6.5" rim is a bit on the narrow side for the wide of a tire. rule of thumb is that the rim width be approximatly 2" narrower than the tire section width. This is for proper sidewall support. So in the case of a 9.50 tire, a 7"-8" rim would be best (I'm running an 8" Rallye). Too narrow of a rim will cause handling problems, especially wander. This is aggrivated with shorter weelbases. In the case fo the OE rim, which is a 5 1/2", the 7.00-15 would be ideal.
Bill Burmeister
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