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Re: Western Chassis drop spindles VS G20 Shorty
Baker #781788 September 06th 2021 3:56 pm
Joined: Jun 2010
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Just not the G30 HD coils ... will be too stiff of a ride


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Western Chassis drop spindles VS G20 Shorty
Baker #782545 September 20th 2021 5:04 pm
Joined: Jun 2021
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Here is where I am as of today:

The Western Chassis spindles will not work for this application. The problem is two fold, as the c20 WC spindles utilize the larger ball joint studs, and use the larger calipers. Because you must use the larger calipers off the GMC 2500 it requires the 8 lug rotors. This opens up a whole new pinch point as I already have wheels to fit the 5 on 5 bolt circle.

I had a long talk with Western Chassis, and they said that I was on my own as they had never tried to put these spindle on a G20 van.

I then talked to summit and had them ship the CCP drop spindles for a C10 pickup. They are about $40 more over the price of the C20 spindles that Western Chassis sells, but they have three advantages:

1. They use the smaller ball joints found on the stock G20 van
2. They use the larger tie rod joints on the G20 steering AND the go in from the top like the stock spindles - Not up from the bottom like the WC spindles
3. They offer a 2.5 inch drop rather than the 2 inch drop from WC

Bottom line is that they fit our vans with no modifications. The part number from Summit racing is CLP-CP4S4 and the cost was $280.

Now I have to find some lower control arms out of the junkyard as I have modified my originals to fit the WC spindles.

1 member likes this: SamD
Re: Western Chassis drop spindles VS G20 Shorty
Baker #782546 September 20th 2021 5:05 pm
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The pioneers are the guys with all the arrows in their back.

Re: Western Chassis drop spindles VS G20 Shorty
Baker #782557 September 20th 2021 5:54 pm
Joined: Jul 2014
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Uncle Rust N Dents
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There seems to be a lot of confusion around that whole 3/4 ton van with 1/2 ton parts thing.


[Linked Image from farm3.staticflickr.com]
Re: Western Chassis drop spindles VS G20 Shorty
Baker #782568 September 20th 2021 6:50 pm
Joined: Jun 2010
Posts: 18,286
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C10 parts are not designed to carry the G20 weight ... unless you are going to trailer your van.

Yep parts fit .. looks cool but ...

Last edited by frscke1; September 20th 2021 6:52 pm.

SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Western Chassis drop spindles VS G20 Shorty
Baker #782574 September 20th 2021 8:17 pm
Joined: Mar 2011
Posts: 513
Likes: 55
J
addict
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I was waiting for you to say they sent you a 8 or 6 lug brake kit. If you want to do drop spindle on 5 lug, use the c10 spindle, they come in both flavors 5 on 5 and 5 on 4.75 wheel pattern. The brake rotor thickness is the other giveaway, should be 1.25" rotor I don't think they used the car pad on the vans but I could be wrong. When you search drop spindles for C10 you will see these 2 choices, stick to 73-87 truck. In the early 70's GM made a change in the vans to offer more tire choices, they went to the 5 lug. Remember cars of the 70's where built with the 5 on 5 lug pattern (Impala). GM did not work so hard creating new suspensions, Surprise early 2WD S10 is G body! The G body guys love using the C10, G10-20 upper BJ for a improvement. If you have a hard time finding a set of lowers, I pass thru to the other SO CO and could meet you near the I95.

1 member likes this: Baker
Re: Western Chassis drop spindles VS G20 Shorty
Baker #782579 September 20th 2021 9:48 pm
Joined: Sep 2005
Posts: 9,855
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carpal tunnel
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The GVWR for a '95 SWB G10 is 3166 pounds front......for a G20 it's 3400 pounds front..... that's only 234 pounds.

The total GVWR for the G10 SWB is 6000 pounds and the G20 SWB is 6600 pounds. The "regular" WB show the same numbers. According to the 1995 model selection summary. I just looked at the '95 year model.

Not a lot of difference there.....


Incidentally the regular WB G30 showed 3400 pounds front as well unless the HD option package was picked....

https://www.gmheritagecenter.com/do...tion-kits/G-Van/1995-Chevrolet-G-Van.pdf

Last edited by CatFish; September 20th 2021 9:59 pm.
2 members like this: Baker, Rusty Pancelode
Re: Western Chassis drop spindles VS G20 Shorty
CatFish #782581 September 20th 2021 10:28 pm
Joined: Jun 2010
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Originally Posted by CatFish
The GVWR for a '95 SWB G10 is 3166 pounds front......for a G20 it's 3400 pounds front..... that's only 234 pounds.

Untill you hit the brakes and all that #8860 comes forward and snaps those little twiggs ...


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Western Chassis drop spindles VS G20 Shorty
frscke1 #782583 September 20th 2021 10:49 pm
Joined: Sep 2005
Posts: 9,855
Likes: 234
carpal tunnel
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carpal tunnel
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Originally Posted by frscke1
Originally Posted by CatFish
The GVWR for a '95 SWB G10 is 3166 pounds front......for a G20 it's 3400 pounds front..... that's only 234 pounds.

Untill you hit the brakes and all that #8860 comes forward and snaps those little twiggs ...

The G20 Sport Vans with a V8 and "regular" WB were rated heavier at a total GVWR of 6875 pounds. But that was the highest rating for a G20 and on those the rear axle was still rated at 3500 pounds max.

According to Chevy.....

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