Wheel Hop
#2838956
10/29/20 07:27 PM
10/29/20 07:27 PM
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Joined: Jun 2004
Posts: 935 Elizabethtown, KY
6T9Hemi
OP
super stock
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OP
super stock
Joined: Jun 2004
Posts: 935
Elizabethtown, KY
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What is the best way to cure wheel hop on a 69 340 swinger. There is a stock pinion snubber on the differential (sure-grip)
1969 340 4 Speed Swinger R4, black vinyl, white butt stripe, 3:91
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Re: Wheel Hop
[Re: 6T9Hemi]
#2838987
10/29/20 08:44 PM
10/29/20 08:44 PM
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Joined: Jan 2003
Posts: 11,991 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 11,991
Benton, IL.
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The best way to stop wheel hop on a Mopar is to find the problem. Your car was not prone to wheel hop when new and everything in good shape. In fact, Mopar went to some lengths to prevent wheel hop by the very design of the leaf spring location unlike any of their competitors. You can start adding aftermarket parts or you can get to the root of the real problem. But that probably cannot be done on the computer. You will likely need someone who knows a bit about Mopar rear suspension to diagnose your problem.
Master, again and still
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Re: Wheel Hop
[Re: Cab_Burge]
#2838999
10/29/20 08:59 PM
10/29/20 08:59 PM
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Joined: Jan 2003
Posts: 20,723 A collage of whims
topside
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,723
A collage of whims
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As already stated, wheel hop wasn't much of a problem on Mopars, especially the HP models. That said, springs, bushings & shocks do wear out; the only good 50-year-old springs I've had were the B-body XHD "Hemi" springs. The rest all settled quite flat, even my early B cars. Under what conditions, what power level, etc are you experiencing this ? I'm not sure how cheaply you want to address it, but you could start by clamping the forward leaves.
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Re: Wheel Hop
[Re: topside]
#2839222
10/30/20 11:20 AM
10/30/20 11:20 AM
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Joined: Jun 2004
Posts: 935 Elizabethtown, KY
6T9Hemi
OP
super stock
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OP
super stock
Joined: Jun 2004
Posts: 935
Elizabethtown, KY
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As already stated, wheel hop wasn't much of a problem on Mopars, especially the HP models. That said, springs, bushings & shocks do wear out; the only good 50-year-old springs I've had were the B-body XHD "Hemi" springs. The rest all settled quite flat, even my early B cars. Under what conditions, what power level, etc are you experiencing this ? I'm not sure how cheaply you want to address it, but you could start by clamping the forward leaves. The car does have the original 6 leaf springs on it and they look pretty flat. What would be the best replacement springs to get closest the the originals.
1969 340 4 Speed Swinger R4, black vinyl, white butt stripe, 3:91
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Re: Wheel Hop
[Re: 6T9Hemi]
#2839264
10/30/20 12:46 PM
10/30/20 12:46 PM
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Joined: Sep 2003
Posts: 19,305 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,305
north of coder
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"most" springs were designed to be almost "flat" at ride height. there are a bunch of ways to fix your problem, depending on how much money you are willing, or wanting, to spend. over the 50 years i have been working on these things, the first item i check are the spring and shock bushings. after that, i have found if you have a spare set of springs laying around or can find a set someone has replaced cheap, chop the eyes off of the main leaf, and install that leaf under your original main leaf. then clamp the forward leaves together. use bought or home made clamps as you see fit. the ride is not adversely affected, and wheel hop disappears. just one way i have done it on the cheap, but keep in mind, i NEVER throw anything away, plus i have tons of shop tools here at my disposal. your mileage will vary, depending on your stash of "stuff" and your tool kit.
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Re: Wheel Hop
[Re: fourgearsavoy]
#2840491
11/02/20 04:25 AM
11/02/20 04:25 AM
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Joined: Mar 2011
Posts: 1,653 Cut and Shoot, TX
kentj340
top fuel
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top fuel
Joined: Mar 2011
Posts: 1,653
Cut and Shoot, TX
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When my '69 Barracuda 340 was about 4 or 5 years old, wheel hop started on aggressive acceleration, so I took it to a spring shop, and they installed an additional leaf, 2nd layer, making 7 each side. Problem solved, and as a bonus it raised the rear an inch or two which I thought improved the stance and looks. The springs are still working as intended, no hop.
My recommendation is to add a 2-1/2" wide leaf to each side that is 54-1/2" long with center hole 19-1/2 from the front end and see if that fixes the wheel hop. This could be relatively fast, cheap, and easy. I believe my extra leaves probably came from a junk yard, because they were hand cut to length by torch. Photo shows the extra leaf in 2nd layer.
If you don't see two dolphins, you need a vacation.
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