OEM looking fendertriming for 37" tires

[K20chevy]

Originally Posted by johnnypop

Pie cut the body line at the curves and pinch it back, be sure you coat the inside of the fenders well once all the welding and bodywork is done or else you'll end up with a rotted mess after a few years of wheeling. The brown truck's fenders were done years ago, will fit 37's on a 4" lift with no rubbing, white truck has received the same treatment, both trucks awaiting sets of 37's right now cause money is tight. Looks super factory, basically you push the rear of the fender back to follow right along the inner fender, then the front I did about 2 inches to make it look clean

WOW, that looks amazing! If you wouldn´t know, you couldn´t really tell the difference! And if you say it clears 37" tires with 4" lift, awesome! That is what I need to do with mine! Do you happen to have a few more pics from the side? looking directly at the fender? Thanks!

[wilkin250r]

Indeed, that thread is fantastic.

And that brown stepside is sexy!

[K20chevy]

x2, the brown truck is nice!!! What color brown is this? OEM color or some custom color? any more pics of that truck?

[1985-GMC]

See that's what I plan on doing! Any more pictures from the side johnnypop, or some during the surgery?

[johnnypop]

I'll need to get some good side photos, I never made a point of photographing the work in progress... The brown is "factory" by the book, but the actual factory color is a little darker and purple-ish.

[85sierraclassic]

bout mid way down the page ?
http://southern-truck.com/generalmotors.html

[K20chevy]

Thanks jonnypop, some side shots would be great! So the brow is a factory color? Cool, never thought they had cool colors like that stock!

[K20chevy]

Any news on the pictures (side shots) johnnypop???

[K20chevy]

No reply at all????

[1985-GMC]

I'm in for more pictures as well, here's another picture he posted:


And after some super secret detective work... here is another :

[mckustomfab]

I know i'm kinda late to the party, but here is what i plan to do to my '91 crewcab. Section the front and rear of the opening to make it wider and also section it up to make it taller. Check the pics to see what I mean!



Hope this is not to late and it helps!

[bohmankid]

http://67-72chevytrucks.com/vboard/s...d.php?t=550860
Here are a few pics in this thread.
Posted via Mobile Device

[K20chevy]

Originally Posted by bohmankid

http://67-72chevytrucks.com/vboard/s...d.php?t=550860
Here are a few pics in this thread.
Posted via Mobile Device

Cool, thanks for the info!

[K20chevy]

Originally Posted by mckustomfab

I know i'm kinda late to the party, but here is what i plan to do to my '91 crewcab. Section the front and rear of the opening to make it wider and also section it up to make it taller. Check the pics to see what I mean!



Hope this is not to late and it helps!

what size are the tires you are running? they look like at least 40´s....

[Devillusion]

Here is what I did to mine.......see thread for more information. Front fender was lengthened front and back 1.5", and up and inch as well if I remember right. Also brought the front section up to the bottom of the rad support, and brought the rear portion up to the bottom of the door so that it looked right when I put the rock sliders in place. Rear quarters were brought up as well and moved rearward to accomodate the flex of the 56" leaves.

http://67-72chevytrucks.com/vboard/s...d.php?t=443538

[K20chevy]

Originally Posted by Devillusion

Here is what I did to mine.......see thread for more information. Front fender was lengthened front and back 1.5", and up and inch as well if I remember right. Also brought the front section up to the bottom of the rad support, and brought the rear portion up to the bottom of the door so that it looked right when I put the rock sliders in place. Rear quarters were brought up as well and moved rearward to accomodate the flex of the 56" leaves.

http://67-72chevytrucks.com/vboard/s...d.php?t=443538

looks really nice! But you can´t run inner fenders with that, correct? at least not the stock ones!?

[Devillusion]

Yes, running stock inner fenders. See thread for pics.

I had to tack weld mine in place due to structure issues on the bolt placement, but with more careful cuts it would not be a huge issue, just time consuming. But I wanted the same thing you do........more clearance and a somewhat factory look. The K5 above in the picture only has a 3-4" lift with 35" tires on 16x8 wheels.

[K20chevy]

Originally Posted by Devillusion

Yes, running stock inner fenders. See thread for pics.

I had to tack weld mine in place due to structure issues on the bolt placement, but with more careful cuts it would not be a huge issue, just time consuming. But I wanted the same thing you do........more clearance and a somewhat factory look. The K5 above in the picture only has a 3-4" lift with 35" tires on 16x8 wheels.

did you stretch the inner fenders too? Mine are farely close up top to the stock opening and only "separate" from the outer edge toward the bottom in the front and back.
I guess I´ll just have to tear into it and go step by step. I want to keep my side marker, but on the 73-80 it is easier due to it being upright.

the tough part for me is, 3-4" lift with 37x12.50R17s and long travel suspension. I´d love to be able to turn the wheels lock to lock at full compresion without touching anything. Not even sure if that works with a 37" tire.
I´m also thinking about a wheel with more backspacing to reduce the forward and back motion of the wheel. but I can only go so far on BS because otherwise the tire will hit the (for now leaf pack) upper or lower 4-link bar.

Thanks for your info!

[Devillusion]

Originally Posted by K20chevy

did you stretch the inner fenders too?

No, all stock. I just made slits in the fender inner structure where they bolt on and bent them upwards a bit. Some light hammer/dolly work on the sheetmetal and wasn't that bad actually. Fenders were alot more stressful and more work.

Originally Posted by K20chevy

the tough part for me is, 3-4" lift with 37x12.50R17s and long travel suspension. I´d love to be able to turn the wheels lock to lock at full compresion without touching anything. Not even sure if that works with a 37" tire.

I think you should be fine....mine has decent travel for a leaf sprung suspension and doesn't even come close on 35's.

Originally Posted by K20chevy

I´m also thinking about a wheel with more backspacing to reduce the forward and back motion of the wheel. but I can only go so far on BS because otherwise the tire will hit the (for now leaf pack) upper or lower 4-link bar.

Thanks for your info!

Back spacing won't effect your forward and rearward motion....just on the side to side clearance when you turn. A 3-4" back spacing will hit close to the middle of an 8" wheel and should be fine.

[gchemist]

You can find a guide table here: http://coloradok5.com/tirefitmenttable.shtml

[K20chevy]

Originally Posted by Devillusion

No, all stock. I just made slits in the fender inner structure where they bolt on and bent them upwards a bit. Some light hammer/dolly work on the sheetmetal and wasn't that bad actually. Fenders were alot more stressful and more work.



I think you should be fine....mine has decent travel for a leaf sprung suspension and doesn't even come close on 35's.




Back spacing won't effect your forward and rearward motion....just on the side to side clearance when you turn. A 3-4" back spacing will hit close to the middle of an 8" wheel and should be fine.

thanks for the info. Once I get the fenders modified, I can see how far I can go up on full bump and determine the ride hight. Then I can match the rear suspension to it.
The wheels will most likely be 17x8.5 with 4.75" BS. With 37x12.50 tires.

Originally Posted by gchemist

You can find a guide table here: http://coloradok5.com/tirefitmenttable.shtml

thanks, I´ve seen that table before, but you can fit larger tires if you modify the fenders enough. I was running a 4" lift with 35´s and had no rubbing issues even though it states in this table you need to trim the fenders. I guess it also depends on wheel width, back spacing and the tire you are running.

I´m planning on max 4" lift with 37" tires and no rubbing anywhere. I´ll keep you posted if that works out.

[K20chevy]

I hope to have mine on the truck by May. I´ll post pics as soon as I do!

[Duster]

Mine has 4" inch leafs, 0 rates (ORD), and 1" body pucks (ORD) Gives it 6" of lift with the ride of a 4" spring.

Tires are 36/13.50 bias plys, which measure to almost 37" when fully inflated.

[05duramaxhd]

here is my old 86 with 4" rough country, daystar front shackles and the fenders trimmed. it had 36x14.5x15 mickey's on 15x12 mickey classic II's.

[05duramaxhd]

another shot