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Jul 21st, 2025 | | | | Joined: Jul 2012 Posts: 6 New Guy | | New Guy Joined: Jul 2012 Posts: 6 | I have a friend that has a 37 Chevy 1.5 T truck. It has the Split lock ring wheels and he wants to get rid of them and use a different type of wheel. The tire size is 6.50 by 20" and a 5 lug bolt pattern. What year of wheel and type from another truck will work on his truck? He will put new tires on also. 40chevypu. | | | | | Joined: Oct 2013 Posts: 331 Shop Shark | | Shop Shark Joined: Oct 2013 Posts: 331 | You can put 19.5" tubless wheels on it off a late model P30 chassis. The lug pattern is 10 x 7.25". The front axle only uses 5 of the 10 studs, the rear uses all 10.
I would like to have a couple of his old wheels. Those should be 3-piece wheels. They are perfectly safe if they're in good shape. I have 6 that I restored and am using on my '50 1.5 ton, would like to have a spare or two.
1950 4100 - unrestored and driven weekly for almost no reason at all.
| | | | | Joined: Oct 2013 Posts: 331 Shop Shark | | Shop Shark Joined: Oct 2013 Posts: 331 | You can find this chassis I speak of under an GM powered Class A motor home. The weeds are full of them.
1950 4100 - unrestored and driven weekly for almost no reason at all.
| | | | | Joined: Jul 2012 Posts: 6 New Guy | | New Guy Joined: Jul 2012 Posts: 6 | mechanic58,
Thank you for the reply. Is there any year of Chevy truck that would have that type of wheel on it? If so, what year?
In your reply, you mention and have the word, tubless, I think that is what you had, do you mean tubeless tire? 40chevypu Marv | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | GM used 5/10 lug, 22.5 tubeless wheels when tubeless tires first came out in the mid to late '50's, so look on old farm trucks for these wheels, about 5.5" wide which will mount 9.00 or narrower x 22.5" tires.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Jul 2012 Posts: 6 New Guy | | New Guy Joined: Jul 2012 Posts: 6 | Hello Ed,
Thank you for the info. That is what I was looking for, some years of old farm trucks that the wheels would fit his 37. Marv | | | | | Joined: Mar 2004 Posts: 6,189 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,189 | The 10 lug on 7.25" bolt circle with a 5.25" center hole, 22.5" tubeless rims were only used on the 1956-59 Series 4000 Chevrolet (1-1/2 ton) trucks, the 2-ton had 6-lug rims...I don't know it GMC used them or not. Mike B  | | | | | Joined: May 2005 Posts: 8,877 . | | . Joined: May 2005 Posts: 8,877 | No, not on GMC. As noted In that year range GMC had 6 lug Budd even on the 1.5 ton.
This and many other wheel questions and answers lie in the sticky thread titled "wheels and tires, what to do" and in the Tech Tip linked in the thread. Relevant Tech Tips also found in big bolt section of main Tech Tip page, link at top of every SB forum page.
Grigg | | | | | Joined: Mar 2011 Posts: 667 Shop Shark | | Shop Shark Joined: Mar 2011 Posts: 667 | I mounted 1998 Chevy 3500 tubeless 19.5's on my'46 using a 1/4" spacer. The the lug pattern is identical but the hub piloted opening is 1/4" larger than the 40's models. | | |
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