What have you done to your El Camino today!

inverse121 said:

Replaced the 2.56 open rear end with a 3.08 posi.... Posi may be shot. It clunked a little when taking the corners.

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inverse121 said:

I used the additive. It’s been sitting a long time. I haven’t tried reverse figure 8s in the school parking lot yet. That usually fixes them.

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Well the chatter and grab got bad enough that I decided to do something about it. I suctioned 16 ounces of nasty goo out of the rear end. Added a tube of additive and about 8 ounces of clean gear oil and took it to a parking lot for reverse figure eights until my head was spinning. Came back home suctioned as much out as I could and added a tube of additive and clean gear oil until it ran out the fill hole (1.75 quarts). All fixed, rear end is nice and quiet. Now back to dreaming about enough power to do a burnout...

tomicamino said:

Was not the fuel pump, connector has melted inside of tank View attachment 155118

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"Inside the fuel tank"....
And here I am sure that the elky isn't even closely related to the Pinto...

Karadjgne said:

"Inside the fuel tank"....
And here I am sure that the elky isn't even closely related to the Pinto...

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Pinto ???
It was original 4,3 liter v6 tank fi fuel sending unit, but the connector could not handle the bigger pump current

Very cool. That's awesome.

Started the rear end modifications...gonna be a challenge. LOL

Man, I like your work. I'm looking forward to seeing your truck when you're happy with the results.
We may have to take a roadtrip to see it in person. Keep up the good work, make it your own

And that is only the primer...

Very cool and looks good.

Nice job, it's looking great.

FINALLY took the time to properly set my rear pinion angle. When I first swapped to the T56 I was working off of jack stands and had no idea just how far off I was. It had a slight driveline vibration when you’d get up around 75 MPH. Now that I have lifts again I finally cleared out enough other projects so that I could spend some time with the El Camino. I’m embarrassed to admit that I had the pinion angle off by almost 3°!

Now it’s properly set and I took a nice cruise on the freeway. I might or might not have cruised along at 125 MPH for a bit. ZERO vibration now. I can’t believe it has taken me so long to get to this issue.

Glad you figured it out, with awesome results.

Wow, a whopping 3°, that's what? A whole 1/4" give or take? Crazy how something so small can have such a large affect.

I have that same annoying vibration issue decelerating from +75. I'm not sure where mine is coming from. Congratulations on locating & correcting yours

Caballero Joe said:

I have that same annoying vibration issue decelerating from +75. I'm not sure where mine is coming from. Congratulations on locating & correcting yours

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Initially I “tried to” set mine about 1° down as I’ve done with every other car in my history. But the rigid (Delrin) bushings don’t allow for any significant pinion angle change under acceleration. This time I just zeroed the angle to match the transmission output shaft and all is well. This car has gone from TH-400, then TH-350 & 12-bolt rear to TH-400 with 3.00 9” rear, then T56 with the same rear, then a swap to 3.70 rear gears. I’m not even sure how many times I’ve built crossmembers or adjusted the rear pinion angle. Thankfully I’m done swapping parts. I recently got rid of another project car so I can again concentrate on ”finishing” the El Camino. This vibration was literally the only “issue” that I was having. Every future project will only consist of improvements.