521 Ball Joint Mod

[Juanjoze]

Thanks to a friend who shared his experience with me. And along the way there are things to deal with.

 

I don't know if it would work on a 620, it depends on the position of the shock towers. It would be great if it works.

[d.p]

Someone stateside do this mod and provide feedback please kind sirs.  

[Crashtd420]

3 hours ago, d.p said:

Someone stateside do this mod and provide feedback please kind sirs.  

I wish it was slightly newer parts, 720 stuff isn't that easy to find for everyone...

But I applaud the effort....

[thisismatt]

2 minutes ago, Crashtd420 said:

I wish it was slightly newer parts, 720 stuff isn't that easy to find for everyone...

But I applaud the effort....

Should be able to run hardbody spindles/hubs/brakes. Beltech makes drop spindles brand new. Control arms are available aftermarket. Really not much you couldn't buy off the shelf.

[d.p]

33 minutes ago, thisismatt said:

Should be able to run hardbody spindles/hubs/brakes. Beltech makes drop spindles brand new. Control arms are available aftermarket. Really not much you couldn't buy off the shelf.

 

[thisismatt]

3 minutes ago, d.p said:

 

 

You know me, I got a dozen excuses...I have all those parts, but most of them are half a continent away after moving 😩

[uberkevin]

Idk how one in the states is going to find this. 

UCA From Chevrolet Luv 95-05 From Mexico, ISUZU pick up USA.. 

Maybe.  But I never see Luvs or ISUZUs. 

[Crashtd420]

3 minutes ago, uberkevin said:

Idk how one in the states is going to find this. 

UCA From Chevrolet Luv 95-05 From Mexico, ISUZU pick up USA.. 

Maybe.  But I never see Luvs or ISUZUs. 

Upper control arm is no issue, found that on rockauto.... not the luv but the isuzu... 

I think the isuzu pickup was called the hombre... 

It would be nice if the d21 stuff could be fitted.....

[Juanjoze]

I don't know how difficult it is to find the parts in the USA.

These are what you need.

 

Upper control arm.

 

https://www.amazon.com.mx/Dorman-520-193-Brazo-de-control/dp/B00279IFAY

https://www.ebay.com/itm/354721860722?epid=80983423&hash=item5297120c72:g:XJIAAOSw05JkOxeC&amdata=enc%3AAQAIAAAA4LW%2Fo7skDXALWDfEBbomNCNwrqUlJT9iFSQM%2F8itY4GF%2F1wRQjtK8SWJ5klMsNAGppgfTy1CDfCO5u1m1oNFFLiwjKFrCvhBy%2FrLSgcDnWr8B5AeYk4Ip8pYl%2Bl5BoCESEOAyaLurkTwfLgRfht3o%2F%2B3jujF%2FMVoMdLoVZgbmbMRwr0FHycHM0bzMryUZ5Rgv0ylxzjmRWfy3R3S2RVPYqCSDkQemVJk07ENd1kalI46wk9YwBFzElcyom%2BF9hJQv4gas9hfIGp0DWQaNK%2FVA1%2BYGpABpm3m70kxD7zMLA77|tkp%3ABk9SR8ydvJX5YQ

 

 

 

 

 

 

[Juanjoze]

 Lower Control Arm with Ball Join: Left - Join

 

[Juanjoze]

Lower Control Arm Bush, optional or whaser.

 

https://www.ebay.com/itm/325389521101?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1VEV_n5pzQzWPB7KxcLILwg25&norover=1&mkevt=1&mkrid=21562-222008-2056-1&mkcid=2&itemid=325389521101&targetid=293946777986&device=c&mktype=pla&googleloc=9133381&poi=&campaignid=19868683663&mkgroupid=145907810526&rlsatarget=pla-293946777986&abcId=&merchantid=420514586&gclid=Cj0KCQjw3a2iBhCFARIsAD4jQB0X7frej5_z0pLsXs0fwXkjNJFtRKa5vsId9vhUl26MFGUPn7_hZKcaAhlmEALw_wcB

 

 

[Juanjoze]

Lower control arm pin. from 720. or 620 with ball joint

 

[Juanjoze]

Control arm - Torsion bar anchor from 620 - 720

 

[Juanjoze]

I was able to get here in Mexico:

 

New upper control arm:

-- With ball joint : 100USD +-

-- Without ball joint : 50USD +- 

 

New lower control arms:

-- With ball joint : 100USD +-

-- Without ball joint : 50USD +- 

 

Pair of bushings: 25 USD+- 

 

Pair LCA (Sun) Bolt: 25 USD+-

 

Both sides: Caliper + Spindle + Hub from old 720: +- 150 USD  

[Juanjoze]

I found this at a good price.

 

https://www.ebay.com/itm/204136442123?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D247549%26meid%3D1a393c6d8153423ab49f49a9def547bc%26pid%3D101195%26rk%3D2%26rkt%3D12%26sd%3D204137914138%26itm%3D204136442123%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv11WebTrimmedV3MskuWithLambda85KnnRecallV1V4V6ItemNrtInQueryAndCassiniVisualRankerAndBertRecallCPCBlended&_trksid=p2047675.c101195.m1851&amdata=cksum%3A2041364421231a393c6d8153423ab49f49a9def547bc|enc%3AAQAIAAABUClE7Rni7LPdZba0E4PpnN9sqdNIfzrngjJmhUj%2BPVGabI8X4okIddREUp4Q0zc2AzeQ%2BYWQSxoBqGa9J%2Bx35NrBHVFYUVGsflNyHmFJfvouFhcLtSal3PrT8uqN34xP8tTkRtMZH%2Bjfqn4MA7rMqmrKLpfe44bnvU45xuEy5pGagf%2FYv1ngSQuZJoTcxk3Je50JgvkgnGoxWvQxCy1KQDaf65ZF94h%2FB34AQNhJTEWRuV%2B9Ks0jVpiS9JV4ddui0yQRrVp6wg8a59ZvxlieF4owexJHbtXSsZpbfxGa%2BitascLur2V7xWM15jtwRv2HCFreCNqtHixzivx7W3pmQe%2F0WCiWYj6LdNPtevL0vflyhfEx7AtJYFVMqldbhGOMNC4Te5ZH3A2l0Gb6OVHF4fRw%2BXvlvNuJvje4yz%2BcdVRbO%2FLCpMymdpNJ77UfMcgmxw%3D%3D|ampid%3APL_CLK|clp%3A2047675

 

 

[Crashtd420]

16 hours ago, Juanjoze said:

 Lower Control Arm with Ball Join: Left - Join

 

The d21 does seem to look the same so what Matt said seems possible.....

 

Thanks for the extra info.... 

 

Did how far the tires stick out change with this modification?

[Crashtd420]

16 hours ago, Juanjoze said:

Lower control arm pin. from 720. or 620 with ball joint

 

One question why the different bolt?

Is it a different diameter or longer than the 521? 

Just wondering since you say you can use the old bushing with washers?

As I ask that I think I answered my question but I'll ask anyhow,  I assume it needs to be longer if your adding washers to take up the space......

[Juanjoze]

Just now, Crashtd420 said:

One question why the different bolt?

Is it a different diameter or longer than the 521? 

Just wondering since you say you can use the old bushing with washers?

As I ask that I think I answered my question but I'll ask anyhow,  I assume it needs to be longer if your adding washers to take up the space......

 

Hi, 720 Lower control arm is wider.

[Crashtd420]

1 minute ago, Juanjoze said:

 

Hi, 720 Lower control arm is wider.

I kind of figured you'd say that thanks....

[Stoffregen Motorsports]

On 4/27/2023 at 3:41 AM, pidge said:

That’s pretty cool. Some pretty neat idea you’ve got going on. 👍👍👍 Aren’t the holes in the top of  spindle tapered or am I thinking wrong? I spose you could get lowering spindles if they stilll make them. Dose it fit 14” wheels still? I love the idea and keep us posted. 
-Pidge

 

On 4/27/2023 at 9:02 AM, NC85ST said:

If it’s basically all 720 stuff, then a 14” wheel shouldn’t have a problem fitting. Two wheel drive 720 wheels were 14” from the factory.

 

On 4/27/2023 at 10:59 AM, Juanjoze said:

Hi, stock 521 wheels, will not fit, because hub wheel bore, but 720 14 steel wheels fit perfect. 

 

 

The stock wheels do fit the 720 hubs. I did a balljoint conversion on my 320 using a complete modified 720 front clip and was able to install the stock 320 steel wheels. 

 

[Stoffregen Motorsports]

Re, wheel fitment - Maybe the difference is solid vs vented rotors.

[Juanjoze]

49 minutes ago, Stoffregen Motorsports said:

Re, wheel fitment - Maybe the difference is solid vs vented rotors.

 

 

I meant this, just the rim bore.

 

 

 

 

 

 

[Juanjoze]

2 hours ago, Crashtd420 said:

Did how far the tires stick out change with this modification?

 

Visually it is hardly noticeable with 720 steel wheels, but it is displaced by about 1 inch.

 

I have 205 / 70 / R14 tires on.

 

[Stoffregen Motorsports]

1 hour ago, Juanjoze said:

 

 

I meant this, just the rim bore.

 

 

 

 

 

 

Right, wheel center bore. I'm saying that my stock 320 wheels fit after I installed he 720 front clip. Maybe it's the aftermarket slot mags that have a smaller center bore. Maybe it's the vented rotor hubs that have a larger bore. That's what I don't know.

[Juanjoze]

Just now, Stoffregen Motorsports said:

Right, wheel center bore. I'm saying that my stock 320 wheels fit after I installed he 720 front clip. Maybe it's the aftermarket slot mags that have a smaller center bore. Maybe it's the vented rotor hubs that have a larger bore. That's what I don't know.

Yes maybe, vented disck hub bore are bigger, because slot mags fit perfect with factory 521 hubs.