John Johnson Nop Hop Reduction Gear Box Setup Measurements

[joescoolcustoms]

[dustymojave]

[pedmick]

Great write up!!! I am on my second no hop kit. 1st was on my glass buggy, and the latest is on my baja.
One problem I had on my glass buggy, was that eventually, the interference fit between the boxes and tubes loosened up, requiring a heliarc weld, and loctite to stop the leak.
I used adjustable length swedged tubes with heim joints to dial in the geometry, and these thing hook...Even in sand!

[thefladge]

A have a very early version of the John Johnson No-Hop kit. I've been told the strut rods are from a Corvette.

I'm trying to find out what year Corvette so I can order adjustable ones.

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1957 Vintage Baja Bug.
2110cc engine, 40 IDF Webers on Gene Berg manifolds, Engle 110 cam, Bugpack 40×35.5 Street Pro Heads, W8CC plugs, 12.5 pound Flywheel, Kennedy 1700 pound pressure plate.

[BFB]

You think asking in this thread will get you more responses than what you got from your own last week?
Few ppl run RBG’s and even fewer are going to know what your control arms came off of, sorry to say but what answers you got is probably all there is right now until someone pops in thats either new or old and hasn’t been on here in a while. I highly doubt anyone will know though, no pics of the kits ive seen ( and ive done a bunch of research) has had the ones like yours, they’ve all been the rec tubing ones.
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[John Ghia]

Make your own adjustable links. You can even improve them with heim joints.
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[DesertSasquatchXploration]

Yea already suggested that so did BFB we live in 2023 parts can be ordered online or bought locally here in SOCAL. Adjustable links can be made in a Saturday morning with some coffee a two car garage equipped with basic fab tools. TheFladge has owned his baja for 35plus years yet struggles with simple problems.

[AlteWagen]

I thought the later versions are the ones with the vette arms as they are boxed.

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[AlteWagen]

Looks like the early ones are C3 vette 82-94

More info on measurements here

https://www.thesamba.com/vw/forum/viewtopic.php?t=502694
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[chrisflstf]

Wish someone would re pop those. I think there is still a market for them. Id buy a set

[EverettB]

Admin time:
Let's not get into personal insults.
I did some clean up
If you can't provide direct help, ignore the additional questions.
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[BL3Manx]

[quote="AlteWagen"]I thought the later versions are the ones with the vette arms as they are boxed.


The Corvette rod type are a later version. You can see an adjustable Corvette type rod on the center picture of the late 70s catalog page. The Corvette rod is longer, 16.5" vs. the rectangular rod 12".

In the first picture you can see the rear attach bracket for the control rod was also redesigned to be more vertical to fit the longer Corvette control arms.

I believe the catalog picture shows an unfinished prototype, notice the rear bolts on the spring plate/axle tube sleeve are missing and it still has the same rear bracket as the rectangular tube version. It also has a control rod with threaded rod ends instead of the Corvette rod which was sold with the kit

On the final version, the sleeve on the axle tube is several inches longer than earlier versions and the mount plate which connects the sleeve to the spring plate has five bolts vs. the earlier version's three.

[BL3Manx]

At the top, the picture shows the earlier version left side rear bracket with the shorter rectangular rod

Center is the later version left side rear bracket with the longer Corvette rods

Below is a later version axle tube sleeve with zirc fitting and five bolt holes in the mount plate

[thefladge]

[BL3Manx]

I've read 74 is 16 3/8 and 77 is 16 9/16".

If you are going to use the rods as a jig to weld the brackets on the torsion housing, either should work.

If you are looking for a rod to fit previously welded on brackets, you need a threaded adjustable one

A threaded adjustable one is also probably helpful for setting your rear wheel toe in

[joemama]

I hope its OK to mention this here, as Im hoping to help someone. I have a very nice set of swing axle over tubes that I was going to use to make a no-hop kit. I sold my rgb trans and boxes, but still have these tubes.

Im hoping someone can use them.

[DesertSasquatchXploration]

DOM tubing chuck it in the lathe 45deg chamfer the ends drill a hole or two pound in the threaded inserts. Plug weld and run a bead around the ends, Let cool paint with Rust-Oleum cheesecake job. What's the problem????

[Michael1]

Can you guys help a german to understand the function /setup of the kit?
Does it use beetle spring plates? I have to pull rgb s from the axle tubes and install the slip over tubes ? I so understand the lower strut part.
Does it use beetle axles tubes ? You loose the rubber mounts for
Axle movement ?
Please help me
I can build it by myself once i understand the function
Regards
Michael

[jsturtlebuggy]

Michael1,
To install the over the axle tube pivots you have to press off the outer castings and also cut if I remember correctly (since it was in 1975 last done this) 1/2in off the end casting for clearance of spring plate.
Both my Dad and did this with our Baja Bugs.
The tubing was slip fit over axle tubes and an exhaust flange was welded to slip over tubing to bolted to spring plate. Also added was a boss and Zerk fitting to add grease inside tubing to lube it. As the tubing rotates on the Bus axle tube.
The lower strut I used was off a 1970s Volvo. This strut and front mount that make and weld to torsions has to be very strong as it has a lot of torque applied to it.
I sure you could find some kind strut in a wrecking yard that would work. Or make your own using thick wall tubing and Delrin bushings. Would recommend a Grade 8 or 12.9 rated bolts to hold strut in place
_________________
Joseph
Fair Oaks/Orangevale, CA
Elrod Motorsports
Motion Tire Motorsports
Having fun with Dune Buggies since 1970
Into Volkswagens since 1960

[boxertje53]