2Blue2's 1977 Cobra2 Driveway Build

2Blue2 · Jul 26, 2021

Gratuitous FlowMaster / Exhaust Cutout shot.

It got some stealth flat black spray paint along the line.
Cutout pipe has been dinged cuze lowest point on car bottom.
LOL

Front bracket encapsulates front leaf bracket after a tap from the hammer.
New Mexican U-bolts.
No Cal trac action.
Is underider bar like on 66 Shelbys.

Dropped car back on ground and some bolts got tightened at ride height. Everything got blue lock tight even the poly locks to help keep threads nice for the long haul.

I'm not sure what hermetic seal I broke but the leaf eye bolts were really nice and clean.
I thought i would have to sawzall em out like every 60s Mustang leafspring bolts.

2Blue2 · Jul 27, 2021

Checking the book for specs gets

Spring to Axle U bolt nut - 30-50 ft lbs
Spring font eye bolt nut - 100-140 ft lbs
Shock to leaf mount plate - 14-26

I was able to tighten the u bolts at 40 ft lbs 4 times and it cinched more each time.
I guess the Mexican u bolts form to fit a little bit.

Drove car around block twice did a couple of hard stops/starts
Back up and check them critical bolts again.
Good to go!

LILCBRA · Jul 27, 2021

LILCBRA said:
Why aren't we seeing an after pic of the fumigation? OR.... better yet..... a video demostration!

We're still waiting on the fumigation video....

extra_stout · Jul 27, 2021

2Blue2 said:
I was able to tighten the u bolts at 40 ft lbs 4 times and it cinched more each time.
I guess the Mexican u bolts form to fit a little bit.

Every bolt that has so much free length (top of axle housing to nut) will elongate a lot. It is nothing different than a very stiff coil spring.
So nothing wrong with the mex u bolts

extra_stout · Jul 27, 2021

LILCBRA said:
We're still waiting on the fumigation video....

without fumigation videos!

2Blue2 · Jul 27, 2021

2Blue2 · Jul 27, 2021

Fumigation! Check!
I'll get right on it.

2Blue2 · Jul 27, 2021

Trying to Set Traction Bar Preload
Was able to obtain '0' preload with both bars at same length on both sides, (I guess that means its reasonable square)
Giving each side one more half turn longer so equal preload right now.

But,
Should I set "0" preload with my fat ass in the car ? Then set the desired preload?

LILCBRA · Jul 27, 2021

2Blue2 said:
Trying to Set Traction Bar Preload
Was able to obtain '0' preload with both bars at same length on both sides, (I guess that means its reasonable square)
Giving each side one more half turn longer so equal preload right now.

But,
Should I set "0" preload with my fat ass in the car ? Then set the desired preload?

I'm not sure it matters if you're in the car as much as it does making sure the drive tire is preloaded more so than the other if you don't have any kind of locking rear. If I recall, the instructions for the old Southside Machine Lift Bars I have in my car said to preload the drive tire with one of the shims they sent moreso than the other side.

2Blue2 · Jul 27, 2021

LILCBRA said:
as much as it does making sure the drive tire is preloaded more so than the other

No posi yet.
I imagine setting the "0" preload with me in the car will do this?

Enzio · Jul 27, 2021

2Blue2 said:
No posi yet.
I imagine setting the "0" preload with me in the car will do this?

call stumpy.

LILCBRA · Jul 27, 2021

2Blue2 said:
No posi yet.
I imagine setting the "0" preload with me in the car will do this?

Dunno, I didn't do that and don't remember what those directions said anymore. But I also installed them by myself whereas you have someone to help. It might be better to Google it than what I have to say.....

extra_stout · Jul 27, 2021

I think a small amount (1/2 turn) preload is right. But testing is key...
If you have set it to zero preload with load on the axle (without you in the seat) there will be some preload if you are on the seat...
If you want to drive: try it how you set it. If you want to be sure wait for the answer of stumby.
I think only to much preload or wheel hop is a problem you want to avoid. So raising the preload till there is no wheel hop is the way to go.

extra_stout · Jul 27, 2021

By the way: funny that we are all online, but spread over half of the planet.

2Blue2 · Jul 27, 2021

Message to Stumpy's has been sent.

extra_stout said:
funny that we are all online, but spread over half of the planet.

Yeah Buddy, I remember having a school project pen pal in France 50 yrs ago and thought that was amazing.
We've come along way...

extra_stout · Jul 31, 2021

Any updates?

2Blue2 · Aug 1, 2021

extra_stout said:
Any updates?

Nothing from Stumpy yet.
Found Caltrac instructions online and they want a 1/2 turn preload.

2Blue2 · Aug 1, 2021

Went to local weekend cruise in last night.

Parked by Purple Hemi and slick 34

1 token Fox body but at least it was nice

My car rides rougher with the bars, I've killed the little Lincoln ride for sure.
With less rubber bushings back there the car launches harder and spins the tires further from a stop in the usual test spot.

Enzio · Aug 5, 2021

2Blue2 said:
My car rides rougher with the bars, I've killed the little Lincoln ride for sure.

Yeah but on the 300 mile trip to the Canadian border this week with a full load of all my gear the ride softened up for me and I was amazed how smooth it's driving now. So there is hope.

Bree · Aug 5, 2021

Bars may ake for a rougher ride, but oh the launch you get from them! Everything is a trade off.

2Blue2's 1977 Cobra2 Driveway Build

2Blue2

will be trying this sex one when I can find it

2Blue2

will be trying this sex one when I can find it

LILCBRA

I wish I didn't have all of these balls in the air

extra_stout

extra_stout

2Blue2

will be trying this sex one when I can find it

2Blue2

will be trying this sex one when I can find it

2Blue2

will be trying this sex one when I can find it

LILCBRA

I wish I didn't have all of these balls in the air

2Blue2

will be trying this sex one when I can find it

Enzio

Dang it. I was hoping mine would get 3 more inches

LILCBRA

I wish I didn't have all of these balls in the air

extra_stout

extra_stout

2Blue2

will be trying this sex one when I can find it

extra_stout

2Blue2

will be trying this sex one when I can find it

2Blue2

will be trying this sex one when I can find it

Enzio

Dang it. I was hoping mine would get 3 more inches

Bree

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