Wheel adapter size?

Poorboy006 · Post by **Poorboy006** » Mon Sep 01, 2014 10:30 am

I couldn't pass up a Craigslist find on some wheels for my 1967 f100 swb. The wheels that came the truck when I purchased it are just plain awful. My question is what width adapters will I need to fit 8.5 et -6 18" front and 9.5 et 0 20" rear 5x4.5 wheels? The tires are 255/45r18 and 295/45r20. I calculate a front bs of 4.51 and rear bs of 5.25. I know the rear track is narrower and would like the wheels to stick out as evenly as possible. My truck is lowered by the previous owner. I believe he cut coils judging by the camber and removed springs in the back. Dream beams will be on my Christmas list.

BobbyFord · Post by **BobbyFord** » Mon Sep 01, 2014 12:56 pm

What is this "et" of which you speak?
5 on 4.5 will not fit 0n a 5 on 5.5 bolt pattern.

Poorboy006 · Post by **Poorboy006** » Mon Sep 01, 2014 1:26 pm

Et is offset. I understand the difference in bolt patterns. That is why the the question of fit is in regards to adapters and not just spacers.

ultraranger · Post by **ultraranger** » Mon Sep 01, 2014 1:57 pm

The term ET originates from the German word 'Einpresstiefe' which translates as 'insertion depth'.

BobbyFord · Post by **BobbyFord** » Mon Sep 01, 2014 3:27 pm

So "et" = backspacing?

I would just buy the correct wheels for my application. JMHO.

ultraranger · Post by **ultraranger** » Mon Sep 01, 2014 5:01 pm

ET is the offset distance of the wheel's mounting face (inboard side of the wheel that mates up to the rotor/drum) to the actual center line of the wheel.

http://www.driverstechnology.co.uk/wheel-offset.htm

Backspacing is the distance from the inboard mounting face of the wheel to the outside edge of the inboard lip of the wheel.

http://www.fourwheeler.com/how-to/wheel ... etiquette/

BobbyFord · Post by **BobbyFord** » Mon Sep 01, 2014 5:25 pm

ultraranger wrote:ET is the offset distance of the wheel's mounting face (inboard side of the wheel that mates up to the rotor/drum) to the actual center line of the wheel.

http://www.driverstechnology.co.uk/wheel-offset.htm

Backspacing is the distance from the inboard mounting face of the wheel to the outside edge of the inboard lip of the wheel.

http://www.fourwheeler.com/how-to/wheel ... etiquette/

So,...if you know the width of the wheel and the amount of backspacing....

motzingg · Post by **motzingg** » Tue Sep 02, 2014 5:20 pm

you might get more help on a forum that specializes in window tinting and automotive stereo installations.

http://www.wikihow.com/Wear-Really-Low- ... osing-Them

The FORDification.com Forums

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