MTFCA Forum

Just seen an ad in the new AACA mag. Coker tire now has 440/450 R21 tires for sale. I’ll be needing tires soon, but just doesn’t seem right to have radials on the old truck.
The brand is American Classic, not listed on their site yet.

I wondered what made you think they are radials but they are on the site as 'Bias Look Radials' despite the inch width sizing

Radials are almost always marked with width in mm, so tI would have expected 115 x 21

Here is the advertisement

FJ

Not to say they might run great on a Model A or Model T. My personal experience has been that radials have not been a good thing on some mid-30s cars with more sophisticated suspension systems that were designed for bias-ply tires. Handling became erratic and "mushy". I eagerly await user reviews.

I'm wondering what the alignment specs would be? might be some serious axle bending to get a zero camber like a modern radial.

I bet they are awesome. But expensive. Philip

If they are round they will work!

In the past, when we put radial tires on older cars, especially Chrysler products, the camber stayed the same, but we added a good bit more caster, to stop wandering, and give more "feel" to the steering. It really helps! You need to keep caster even on both sides, or you will get a "pull" to the side with the least negative caster. Not related to a camber pull.

In other words, if you add radials, you may well need to add positive caster to the axle to get it to steer like it used to.

Now we have USA made tyres for the improved 26-7 T's, let's hope Coker can do the same deal for 30 x 3.5 cinchers. I'm not holding my breath!

Allan from down under.

Kerry, why would radials need zero camber? I would think any tire/axle design would need camber to counter act the inner and outer diameter of the turning radius. What difference would radial tires make? Just curious. Dave