Vha Vha Vega..

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Re: Vha Vha Vega..

Postby spencerforhire » Mon Nov 07, 2016 7:50 am

I grabbed the calipers and brackets from one of those 4x4 rear ends at the junkyard; I'm going to try and adapt them to a 1977 7.5" rear end. Hopefully they will fit with the proper 2wd rotors.
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"(9.45@146.19)(6.01@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: Vha Vha Vega..

Postby bigair49 » Mon Nov 07, 2016 9:18 am

Disc brakes would be awesome, but from what I've read you need to modify the wheel well? Hope it works out.
Jess

Let the good times roll
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Re: Vha Vha Vega..

Postby bigair49 » Mon Nov 07, 2016 11:06 pm

Well i spent some time cleaning off the old brackets from the new rear end. I blasted and primed it and got to working things out for the S10 rear end swap and things are looking good so far! here is what i came up with for locating the new brackets. Its kinda primitive but I feel its gonna work out great I took a thousand measurements and checked for square over and over again I think it's gonna work.

The new 7.5 posi 3.42 S10 rear end from a 2003 Sonoma
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The stock 75 6.5 ? With sway bar..
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So the plan is to drop the The new one in the jig and Bobs your Uncle!!
Image
Jess

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Re: Vha Vha Vega..

Postby spencerforhire » Tue Nov 08, 2016 7:25 am

Before you start welding, you should know that a common modification is to raise the upper control mount on the rear end. Basically like the old "no-hop" bars that used to be available. Changes the geometry of the 4-link to provide better bite.
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"(9.45@146.19)(6.01@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: Vha Vha Vega..

Postby bigair49 » Tue Nov 08, 2016 1:25 pm

Oh ya Spence I plan doing the UCA mod on this rear end great point!! I'm still undecided on the amount I should raise them Ive read of guys having success with as little as 1.5 inches all the way up to 3.5 inches so I am working on a bracket that has multi holes up to 3 inches above the original location.

Thanks for the advice I welcome any and all advice and help I can get with this old Vega!
Jess

Let the good times roll
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Re: Vha Vha Vega..

Postby dindin » Tue Nov 08, 2016 2:05 pm

Can I ask why are you changing the rear end on this car? I thought it had a 4 cylinder engine, from what most guys do is just add the monza vented discs up front and it is a bug improvement, unless I missed something.

Al
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Re: Vha Vha Vega..

Postby bigair49 » Tue Nov 08, 2016 2:25 pm

Al,I do have the 4 banger in it still but I plan on swapping a V8 into the car in the future so that is partly the reason for the rear end swap the other is the fact that 4 on 4" wheels are nearly impossible to find let alone any decent 13" tires. So the reasoning is better brakes, 5 bolt wheel options, stronger rear end for the increase in power and well ... EVERYBODY'S DOING IT!!!
Jess

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Re: Vha Vha Vega..

Postby spencerforhire » Tue Nov 08, 2016 8:49 pm

Thumbs up on the idea of making the UCA brackets adjustable. Suspension tunability is great to have.
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"(9.45@146.19)(6.01@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
User avatar
spencerforhire
 
Posts: 2356
Joined: Mon Jul 03, 2006 9:02 pm
Location: Halifax, Nova Scotia

1972 Chevrolet Vega Hatchback

Re: Vha Vha Vega..

Postby bigair49 » Tue Nov 08, 2016 10:56 pm

Well I figured.. If I need to fab up some brackets so why not add a few extra holes. So this hole thing got me thinking.. and what I'm pondering is the location of the adjustable UCA holes. Do they follow the arc of the control arm from a fixed position keeping the pinion angle stationary? Or do they push the pinion angle up or downward ? hope this makes sense. I did get the lower brackets cut out and tacked up but this put me at a stand still.Thanks for checking it out!!
Jess

Let the good times roll
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Re: Vha Vha Vega..

Postby Monza Harry » Wed Nov 09, 2016 12:22 am

Jess I would think that your uppers should follow the arc as pinion angle shouldn't change to affect the change the re-locate is trying to fix, as keeping it the same will reduce the chances of driveline vibration. I like your rear end fixture. Simple[ish]? Yes! Effective design? I sure think so. Harry
I'm not a hoarder I'm a preservationist 78 Monza Spyder (Soon To Be 2+2 with Spoilers)
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Re: Vha Vha Vega..

Postby spencerforhire » Wed Nov 09, 2016 10:38 am

Usually the upper 4 link holes are in an arc on the chassis and rear end brackets. That's the way they are on the Competition Engineering ones in my drag car.
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"(9.45@146.19)(6.01@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
User avatar
spencerforhire
 
Posts: 2356
Joined: Mon Jul 03, 2006 9:02 pm
Location: Halifax, Nova Scotia

1972 Chevrolet Vega Hatchback

Re: Vha Vha Vega..

Postby bigair49 » Wed Nov 09, 2016 1:14 pm

Right on Guys Thanks!! Thats the info I was looking for. I must have been over thinking things :bang:
Jess

Let the good times roll
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Re: Vha Vha Vega..

Postby bigair49 » Mon Nov 14, 2016 3:53 pm

I got the brackets all fabbed up and tacked up here is what I came up with. I now need to weld them up and get this thing under the car :th:
Image
Jess

Let the good times roll
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Re: Vha Vha Vega..

Postby waybad » Mon Nov 14, 2016 9:13 pm

very nice!! :th: :th:
Tinker
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Re: Vha Vha Vega..

Postby 1100kaw2 » Tue Nov 15, 2016 9:42 am

Nice Stuff. You should make em and sell em. Or at least. Sell the templates.
Takes a lot of time to do that stuff.
Looking good :th:
Darrell


72 LS-5spd.
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