Truck Tyres 34 x 7 as 12 ply Olympics

[Barry Churcher]

https://www.universaltire.com/700-20...wall-tire.html

Here is an example available in the US. I bought a pair of these for a trailer and they work well. I am sure you could find a supplier closer to home.
Cheers,
Barry

[Lionelgee]

Hello Barry,

Thank you for posting the link. They had approximately 6 different varieties of 700 x 20 tyres. I think I will do without the white wall version.

Would these tyres need tubes and rust-band; aka tube protector sets as well?

Kind regards
Lionel

[Tony Smith]

Originally Posted by Lionelgee

Would these tyres need tubes and rust-band; aka tube protector sets as well?

Kind regards
Lionel

Irrespective of what type of tyre you find, ANY tyre will require tubes and rust bands to fit on your split rims and still hold air. The problem is not the tyre design, it's the rim.

[Lionelgee]

Hello All,

Just to keep this thread updated - I moved my trucks forward about 1.5 metres yesterday. I had a look at the tyres fitted to each of the two trucks. One truck had three different approximate tyre lablels. 34 x 7; a 7.00 x 20 and a 7.50 x 20.

Due to the totally ruined nature of the tyres - very flat and square bottoms; I had to use a combination of 3 ton trolley jack and a mobile crane. The jack under the rear differential and the mobile crane via chains connected to the front leaf spring hangers, gave me ground clearance. Add in some locomotive force provided by a Yanmar diesel four wheel drive tractor. The battery went flat on the tractor so I called in the back-up. My late model Series 2A short-wheel base Land Rover. All the fun of the fair!

I moved the trucks forward so I could install three sets of pallet racking to store goodies on - like engines and gearboxes. Hopefully my lack of suitable, accessible storage has been resolved - finally after a decade!

I have gained a LOT of floor-space now and soon after I sort all the shelves and pallet racking out - I can find something when I go looking for it! Yes hope springs eternal.

Kind regards
Lionel

[Matthew P]

So is 7x34 referring to the rim width by overall diameter of the tire? I've not measured my 7.5-20 tires for my Ben Hur but to my eye they've looked about a yard across, or around about that 34 number.

Matt

[Lionelgee]

Originally Posted by Matthew P

So is 7x34 referring to the rim width by overall diameter of the tire? I've not measured my 7.5-20 tires for my Ben Hur but to my eye they've looked about a yard across, or around about that 34 number.

Matt

Hello Matt,

Thank you for the reply.

I got the measurements from one of the tyres off the truck that I took a photograph of and posted up (see link http://www.mapleleafup.net/forums/sh...15&postcount=1). The conversion down from 34 x 7 down to a 7.00 x 20 was via Hanno and a kindly linked tyre chart.... Commercial Motors article "Simplification of Giant Tyre Markings" from 1951. Seen in post http://www.mapleleafup.net/forums/sh...16&postcount=2.

Kind regards
Lionel

[Lionelgee]

Hello All,

Since posting the first message of the day at 23:18, I visited the Stovebolt Chevrolet forum. Back in a thread posted in 2005 they mention how the 7.50 x 20 tyres were getting hard to find and too expensive.

Subsequently, they swapped over to using more readily available and cheaper 8.25 x 20 tyres for the rims that were originally fitted with the 34 x 7 AKA in 1951 as the 7.00 x 20 tyres.

I checked in Australia - where I am from and the 8.25/R20 tyres are much more readily available and are quite reasonably priced.

Has anyone else fitted the 8.25 x 20 on your original Chevrolet truck rims? How successful was the swap over?


Kind regards
Lionel