Thread: Street Tires
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Old 08-18-2025, 10:05 PM
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HWYSTR455 HWYSTR455 is offline
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Herb Adams in his 'handbook' catalog outlines the anti-squat mod so you don't have to do the math. I did that mod in the 80s.

It's nice that GW and others make the bracket, but not sure if it's the same as what Adams pointed out. I suspect it is, since there's not much room to work with there. And Doug knows what he's talking about.

As for leaf springs, GW has the reverse wrap springs that are the way to go. I used to run Rancho springs that had the 2nd leaf that partially wrapped the front eye bracket, which acts like a traction bar, so there would be no need for additional traction devices.

Here's 2 clips where Doug talks about using the spherical bearings in the Cat 5 reverse eye leafs:

https://www.youtube.com/watch?v=PJzz9U37gwo

https://www.youtube.com/watch?v=iDin7omk75w

Although it's stated it particularly advantageous in a road racing app, it's also very effective in a drag app.

Just to say, once the suspension is full-articulating, you can tune with shock settings, be it drag or road racing, and you can go back and forth by adjusting the shocks. (and potentially loosening/removing end links on front sway bar).

Wheels. Well, first, a 255 is about max for an 8" wide wheel, and if you have 7s, you just plain need to switch it up. IF, you are switching it up, 18s make the most sense when choosing between 17s & 18s, the tire selection is much better. Not to mention it opens up the door for bigger brakes.

One other thing you have to keep in mind with leaf springs cars too is the fact that tires 'squirm'. The more sidewall, the more they squirm. And the sidewall starts getting pretty close to the leaf when you start going wider wheels and tires already. The only way to really go is inward. You can roll the lip, but you will still be limited to about a 295-305 size max. (Unless you move the springs in or go to the DSE link setup, which also requires notching the frame rails. Yes, you can jack it up to the moon and fit stuff under there, but that destroys the handling).

Long story short, you can't have the best of both worlds. You can get somewhere in the middle and be happy though. If you do more 'road' driving, you can lean more that way, and visa-versa.



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