4.5/6 Drop, Tire size rollin on 20's

[shopking72]

My truck with 255/40/18 and 295/35/20 with Nittos.

[HotRod C/10]

Originally Posted by 67anthony

4-6 drop 255/40 295 /40

what does your rear wheel opening measure in height from the ground to the center of the arch 29 1/2"-30"?

[67anthony]

[QUOTE=HotRod C/10;5921396]what does your rear wheel opening measure in height from the ground to the center of the arch 29 1/2"-30"?[/QUO i will ck for you will be sunday

[magwakeenercew2jh]

4.5/5 Drop w 2.5 spindles and 2" springs in front....5" spring drop in rear.

Wheels are 20 x 8.5 and 20 x 10 Boss' (don't know the BS...they were the only ones they made at the time). 1.5" spacer in the back and 1" spacer in the front.

Tires are 245/40 in front and 275/45's in the rear.

I would have liked more back spacing and a little more tire on the rear.
But I'm running with these now.

[Gmcfolife]

Originally Posted by original-71

i need new pics of my truck but heres one. E.C.E 4-1/2 and 6 drop kit with a 1/2 block also in the rear. You can do 6-1/2 in the rear with no c-notch.

What is the back spacing on your wheels?
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[buckskins4ever]

you running a fleet side so you can do the 295/40 and 255/40. With my stepper I had to stop at 275/40 for rear. Its the widest the rear wells would take and still drop over the tire.

[Gmcfolife]

Originally Posted by buckskins4ever

you running a fleet side so you can do the 295/40 and 255/40. With my stepper I had to stop at 275/40 for rear. Its the widest the rear wells would take and still drop over the tire.

What kind of back spacing fits?
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[buckskins4ever]

Originally Posted by Gmcfolife

What kind of back spacing fits?
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I am running a set of ridler 695 20x8.5 and 20x10, thisnk 10's are a 5.25 BS I know its a ) offset for their wheel think fronts equate to a 4.75 BS still ) offset.

[HotRod C/10]

Originally Posted by Gmcfolife

What kind of back spacing fits?
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your rear axle width will play a role on Backspacing as well....there were two different widths

[Gmcfolife]

I have a 68 1/2 ton gmc with a stock 6 lug rear end. I'm looking to get centerline smoothie wheels. The only 20" wheels they carry are a 20x8.5 with a 5.4 rear back spacing. What do you guys think? Will these work for the front and rear? I would like wider in the rear but rather stay with a 20" and not a 22"
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[indasevens]

Originally Posted by magwakeenercew2jh

4.5/5 Drop w 2.5 spindles and 2" springs in front....5" spring drop in rear.

Wheels are 20 x 8.5 and 20 x 10 Boss' (don't know the BS...they were the only ones they made at the time). 1.5" spacer in the back and 1" spacer in the front.

Tires are 245/40 in front and 275/45's in the rear.

I would have liked more back spacing and a little more tire on the rear.
But I'm running with these now.

What size tire can you fit on the back?????? 295/40/20...?

[BugzC10]

Originally Posted by buckskins4ever

you running a fleet side so you can do the 295/40 and 255/40. With my stepper I had to stop at 275/40 for rear. Its the widest the rear wells would take and still drop over the tire.

Buckskins.....are you setting 4.5/6 in this picture? The picture in your profile looks more like it or is it lower? I'm considering 20s for my stepper and researching what will fit.

EDIT....never mind, saw another post where you said the bags were aired up in this picture.

[ffk]

[markiemark]

Im hearing 245/45 & 295/40/20 because they are both almost the same size. something like 29" and 28.9". correct me if I'm wrong. I'm looking for a set of rims and tires also

[Pro Performance]

It all depends on personal preference, but I recommend the Nitto 420s, which have a 245/45/20 and 285/40/20. They come in at about 28.6 front and 28.9 in the rear.

The 295/40/20 you mentioned will work as well, as the height is basically the same. Each tire model will have different sizes.

[RaceAGMC]

I'm running a 4.5/7 with 255/40/20 and 295/40/20. I wish I would have went a lil shorter all the way around, but these will work for now.

[WIDESIDE72]

I am considering a set of used 20" MB Bruzer wheels with Goodyear Eagle GT II tires. P275/45/R20 tires. I prefer some torq thrusts coys or similar but i can fet these cheap! I am waiting to hear back on rim width an backspacing. Any input?

[WIDESIDE72]

I forgot to add they would be going on a 72 swb stepside with a 3/4 static drop

[Pro Performance]

Great looking truck RaceAGMC.

WIDESIDE72, a 20x8.5 w/ 5.25" BS, and a 20x10 w/ 5.5" BS would work well, but all depends on width of the wheel. Of course, anything close in this that area of backspace should work fine for you on a 3/4 drop.