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Old 02-03-2026, 10:48 AM   #1
Ziegelsteinfaust
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Inner fenders

Right now the front of my truck is lowered as much as possible, and I am thinking lower again. The issue is my inner fenders can bottom out on the tires. So I need to do something.

I am thinking of buying a wheel tub kit and giving it a go from there. Making the fender and the inner fender 1 piece expanding off the factory inner fender but extending it up 3-4 inches. With the extreme likely hood my A-arms will need to be narrowed at the same time.

What have you guys done for 6/8 drops with a 27" front tire for reference. Currently I am at a 3.5/6 roughly.
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Old 02-03-2026, 11:10 AM   #2
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Re: Inner fenders

Check this company out.

Maybe they can give you some idea's.

Link: https://www.sloshtubz.net/
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Old 02-04-2026, 09:25 AM   #3
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Re: Inner fenders

I looked them up, and those kind of blow the budget.

Also I want to keep the inner measurements as wide as possible. Those look like it would narrow it up more then what I want
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Old 02-04-2026, 12:56 PM   #4
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Re: Inner fenders

year?
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Old 02-04-2026, 01:41 PM   #5
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Re: Inner fenders

1983 Clip on 73 Cab
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Old 02-04-2026, 07:39 PM   #6
rodstored-72
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Re: Inner fenders

I am not sure if doing this will help in the final product, but the inner fenders from 73-80 are supposedly "wider" than out 80's version. I have a bell tech static drop & my tires rub quite a bit, I am thinking of trying the early fenders out first before I blow the wad on the slosh tubz..... though the money is very well worth it as he is a member here & a super nice ... cool dude!!
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Old 02-04-2026, 08:53 PM   #7
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Re: Inner fenders

Slosh tubz are nice. This is my cheap and dirty solution. https://imgur.com/a/c10-fender-mod-jDNEamL
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Old 02-05-2026, 12:20 AM   #8
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Re: Inner fenders

Early inner 73-80 are wider and will fit. You will need to modify one or two holes I believe.
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Old 02-09-2026, 05:25 PM   #9
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Re: Inner fenders

Quote:
Originally Posted by TrybalRage View Post
Slosh tubz are nice. This is my cheap and dirty solution. https://imgur.com/a/c10-fender-mod-jDNEamL
x2.

The best 'low-budget' approach that actually keeps the inner tubs functional.

Trailer fenders are another go-to but just like SloshTubz you don't get much protection within the engine compartment (vs what the OE units provide). I have Slosh Tubs on my dually & would chop up a stock set if I were to do another Square.

Now.... If you're experienced w/fiberglass, the Slosh Tubz would be a head start but would need some fab work/closing out to better seal-off the engine compartment area.
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Last edited by SCOTI; 02-09-2026 at 05:32 PM.
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Old 02-10-2026, 12:00 PM   #10
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Re: Inner fenders

trybalrage, nice option very well done... I am going to look closer into doing that. thanks!
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Old 02-15-2026, 07:56 PM   #11
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Re: Inner fenders

Thanks, I know it looks a bit frankenstein-ish, but it was my first time ever trying something like that. They work, and it's been a few years now without issues.

Tips to keep in mind - be aware of your heater box/blower invading the space in the engine bay, and I had to move up my vacuum bulb/reservoir a bit. My overflow bottle doesn't really fit anymore and I haven't come up with a proper replacement yet. Just be aware of anything sitting on or around the inner fenders.
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Old 02-16-2026, 10:58 AM   #12
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Re: Inner fenders

Quote:
Originally Posted by TrybalRage View Post
Thanks, I know it looks a bit frankenstein-ish, but it was my first time ever trying something like that. They work, and it's been a few years now without issues.

Tips to keep in mind - be aware of your heater box/blower invading the space in the engine bay, and I had to move up my vacuum bulb/reservoir a bit. My overflow bottle doesn't really fit anymore and I haven't come up with a proper replacement yet. Just be aware of anything sitting on or around the inner fenders.
Consider something from the earlier generation/s of C10's (64-72).
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
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