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Old 09-12-2018, 12:03 AM   #1
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wheel hop

I have a 2017 short bed with 3:92 gears. Full throttle results in wheel hop while spinning. Anyone tried the Spohn upper/lower control arms? They say it significantly reduces wheel hop.

Also, anyone with the 8 speed auto changed gearing? I'm thinking of going to 4:88s

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Old 09-12-2018, 04:31 AM   #2
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No need to change gears in the 8 speed trucks. With 3.55/3.92 gear sets they go faster than the third gens NA all day. The 8 speed is a good trans save your money for something else.
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Old 09-12-2018, 05:14 AM   #3
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Spohn upper/lower control arms, as long as you keep the stock ride height, they work well for the stock truck, when I 1st got my 14 after the cam swap it hopped bad enough it bent a few trailing arms, the Spohn rear arms stopped it, but then I lowered it and that opened up a can of worms.
I've broken a few passenger side upper's Spohn was great about replacing them, then I found out the issue was I lowered the truck.

if you lower your truck, you'll need
Control Arm Relocation Brackets

to correct the rear axle geometry, a 4 inch drop pulls the rear axle forward about 1/4- 3/8 of an inch. if you do lower it, the Spohn adjustable track arm helps keep the rear centered after lowering.
,after the rear brackets were installed no more breakage, this winter I'm going to pull all of it out and make my own bars to correct the issue with out brackets.

As for gears with the 8speed trans it's a waste of money, unless you want to go from low 3s to a 3.92, anything deeper than 3.92 is unnecessary.
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Old 09-12-2018, 05:56 AM   #4
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The 8 speed has a 4.50 or so first gear ratio, putting in a 4.88 would burn rubber just letting go of the brake haha. Now I don’t have a 4th gen, but I’ve seen a lot of guys use the Iliicit no cut brackets to fix the axle issue on lowered trucks. And I’ve heard of other guys using core control arms to help with the wheel hop. NADodge Facebook page has a lot of guys using them on the 4th gens
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Old 09-12-2018, 06:54 AM   #5
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Quote:
Originally Posted by charged392 View Post
No need to change gears in the 8 speed trucks. With 3.55/3.92 gear sets they go faster than the third gens NA all day. The 8 speed is a good trans save your money for something else.
Thanks for your input. I'm thinking the i3 with PCM is probably where I should go next....then I'll be contacting you for a tune...I live in North Port, FL
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Old 09-12-2018, 06:57 AM   #6
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I plan to keep the stock height, so I'll go with the Spohn arms. Do you see any need to replace the pan hard bar???
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Old 09-12-2018, 07:48 AM   #7
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Quote:
Originally Posted by FastCPA View Post
I plan to keep the stock height, so I'll go with the Spohn arms. Do you see any need to replace the pan hard bar???
At stock ride height, no need unless you want the kool factor.
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Old 09-12-2018, 08:22 AM   #8
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Thanks...I appreciate your taking the time to respond!!!
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