Speedway spindles & arms

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Speedway spindles & arms

Postby OldsStarfire » Sun Feb 04, 2018 1:51 pm

Has anyone figured out the right combination of Speedway spindles & arms to work best on the 5 lug conversion with the stock steering box?
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Re: Speedway spindles & arms

Postby Smiley » Mon Feb 05, 2018 2:43 am

I would call them up and tell them what you want to do, to end up with an S10 spindle with an arm 1/2" shorter.
Or I would try 69 Z28 arms on the new spindles.
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Re: Speedway spindles & arms

Postby 74_Vega_GT » Tue Feb 06, 2018 10:26 am

Smiley wrote:I would call them up and tell them what you want to do, to end up with an S10 spindle with an arm 1/2" shorter.
Or I would try 69 Z28 arms on the new spindles.

Hey Smiley, are you proposing a "fix" to our diminished turning radius using stock S-10 spindles with the stock manual box and arm? Not that the stock turning radius was any good to start with, can it be improved upon? Are you suggesting modified S-10 spindles here? I am not attempting to hijack a thread here, just learn more about the mod I performed and what to expect when were done, thanks Smiley for all of your input.
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Re: Speedway spindles & arms

Postby Smiley » Tue Feb 06, 2018 6:38 pm

These spindles should also accept the 1st gen Camaro steering arms to prevent the reduced turn radius and slower steering response when swapping to stock S10 spindles and using the Vega steering box.

67-69 Camaro used several lengths of arms
Image

the shortest arms are 5.25", middle arms are 5.75" and the long arms are 6.20"
Image

Image

Speedway now makes a 3piece Metric spindle $130 each, they use S10 ball joints and geometry but with bolt on steering arms like a first gen Camaro.

It looks like the 3 piece arms share the same 4.125" center to center arm bolt spacing with the 67-69 Camaro.

The short arms may be an option for those switching to rack and pinion,
and the longer arms for those doing the S10 brake swap wanting to maintain the H-body arm length with a stock steering box.
I think some people have used G-body spindles not knowing they have even longer arms than S10 spindle arms.

SHORT 5.25" LH-3954875 RH-3954876 Used on power steer, and Z/28 fast ratio manual.

SHORT LH-3902519 RH-3902520 turn stop pad is more pronounced on top, arm appears a bit thinner than later arms. 1968

SHORT LH-3954879 RH-3954880 (listed in parts book as 5.312" long, this may be the actual correct length for all short arms)

SHORT JL8 four wheel disc arms, 1969 Z/28 Heat Treated, Shot Peened, (probably short 5.3") LH 3916237, RH-3916238

MEDIUM ARM 5.5" length RH-3916266 LH -3916265? not sure what ratio. 67 and into 68 manual steer.

MEDIUM ARM 5.5" length RH 3954874 LH3954873 - All except for PS and 302 1969 only.

LONG 6.2" manual, - LH-3902517 RH-3902518 (67, early long measured at 6") LH-3917193 RH-3917194 slow ratio manual steering. (May have also been used on some PS equipped cars.)
Last edited by Smiley on Wed Feb 07, 2018 5:38 am, edited 3 times in total.
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Re: Speedway spindles & arms

Postby OldsStarfire » Tue Feb 06, 2018 10:34 pm

This post is for stock steering box. I know the shortest are too short. Need 6-1/4.
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Re: Speedway spindles & arms

Postby danfigg » Wed Feb 07, 2018 2:02 am

This is great news has anyone actually tried this setup---danfigg
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Re: Speedway spindles & arms

Postby spencerforhire » Wed Feb 07, 2018 7:41 am

Three lengths to choose from makes it possible to tailor the steering response to the vehicle's usage. Shortest ones for quick steering on an Autocross car, and probably the medium ones for the street. What are the length of the OEM H-body ones(someone said 6.25"?) vs. the S-10 vs. the G-body?
The "fleet"-
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
03 Silverado 2WD ex.cab (work truck/parts hauler)
04 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
93 Suburban- 350/4L60(retired)
00 Saturn SW2- wife's car
01 Saturn SC2- younger son's project
00 Saturn SL2- daughter's car
98 Saturn SW2- spare
and 3 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
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Re: Speedway spindles & arms

Postby monzaaddict » Wed Feb 07, 2018 1:41 pm

the 67-69 f body arms are rear steer and drop down. 64-72 a body arms are front steer. in my opinion just use the a body spindle (same spindle as 67-69 camaro) instead of the g body/s10 parts and eliminate the camber issues at the same time.

https://www.speedwaymotors.com/1964-72- ... 25073.html
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Re: Speedway spindles & arms

Postby Smiley » Wed Feb 07, 2018 10:24 pm

The Chevelle arms should then also bolt on to the 3 piece metric arms with a 5.75" length and no drop.

H-body 6.25"
S10. 6.75"
G-body 7.25"
Last edited by Smiley on Fri Feb 09, 2018 4:37 am, edited 2 times in total.
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Re: Speedway spindles & arms

Postby waybad » Wed Feb 07, 2018 10:46 pm

monzaaddict wrote:the 67-69 f body arms are rear steer and drop down. 64-72 a body arms are front steer. in my opinion just use the a body spindle (same spindle as 67-69 camaro) instead of the g body/s10 parts and eliminate the camber issues at the same time.

https://www.speedwaymotors.com/1964-72- ... 25073.html



i used the chevelle spindles with the camaro drop down arms,, the chevelles are straight,, but I have a rack.
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Re: Speedway spindles & arms

Postby Kenova » Wed Feb 07, 2018 11:02 pm

Smiley wrote:The Chevelle arms have a different ctc measurement and they are too short from the spindle to the ball joint.

H-body 6.25"
S10. 6.75"
G-body 7.25"


The A-body arms I have are 5.75" from the centre of the spindle to the centre of the tie rod hole. I am using these because they allow more wheel back spacing, especially with a drop spindle.

Ken
My other car is a Nova.
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Re: Speedway spindles & arms

Postby spencerforhire » Thu Feb 08, 2018 7:38 am

So it looks like the trick setup will be A-body spindles and arms. That should quicken up the steering, especially with a manual box, or provide better clearance with a rack and/or wide wheels. So do they have the same taper as the S-10 spindles so we can use the available Bob Gumm ball joint spacers?
Someone please explain why we even bothered with the S-10 spindles in the first place? They're cheap and plentiful, that's why. lol
The "fleet"-
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
03 Silverado 2WD ex.cab (work truck/parts hauler)
04 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
93 Suburban- 350/4L60(retired)
00 Saturn SW2- wife's car
01 Saturn SC2- younger son's project
00 Saturn SL2- daughter's car
98 Saturn SW2- spare
and 3 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
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Re: Speedway spindles & arms

Postby cosvega76 » Thu Feb 08, 2018 10:21 am

spencerforhire wrote: So do they have the same taper as the S-10 spindles so we can use the available Bob Gumm ball joint spacers?


No, they don't. The S10 ball joints use a 9.52 degree taper, while the Chevelle/Camaro ball joints use a 7.15 degree taper. The large taper diameters of the studs are similar, but the small taper diameters of the S10 are smaller than the Chevelle/Camaro.


Chuck
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Re: Speedway spindles & arms

Postby spencerforhire » Thu Feb 08, 2018 5:51 pm

So we're left with modifying the control arms(not really a big deal) to accept the A-body ball joints if we want the quicker steering and the ability to choose steering arm length. It was hoping for too much to expect it to be easy.
The "fleet"-
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
03 Silverado 2WD ex.cab (work truck/parts hauler)
04 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
93 Suburban- 350/4L60(retired)
00 Saturn SW2- wife's car
01 Saturn SC2- younger son's project
00 Saturn SL2- daughter's car
98 Saturn SW2- spare
and 3 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
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1972 Chevrolet Vega Hatchback

Re: Speedway spindles & arms

Postby Smiley » Fri Feb 09, 2018 4:36 am

You can use the 5.75" Chevelle arms on the new Speedway 3 piece metric spindles with S10 brakes and ball joints or Monza ball joints and Bob Gumm ball joint adapters.
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