Build thread for the 72 GMC, finally. Thanks John!

I had fifteen minutes last night, so I did the idle speed / idle mixture screw / timing / dance in the garage. It runs fine again. Starts on the first crank, doesn't make your eyes water, and idles pretty clean for an old worn out 350.

In reply to DarkMonohue :

The internet was a better place when the screens were 4:3 and Youtube wasn't a dopamine machine.

I've been busy with life.

Good news: New job Sep 29, 18% more net pay plus a signing bonus big enough to get wheels and tires.

Bad news: 45 minute drive instead of 20. 

Truck updates: I ran the fuel gauge wire. I got the coolant sender figured out. I am pretty close on the tach and the oil pressure sender. 

Congrats on the new job! (promotion ?)

Pete

Congrats on the new job! (promotion ?)

Pete

tuna55 said:

Good news: will someday get to drive this truck 45 minutes instead of 20. 

Fixed

Promotion! Enough money to get wheels and tires in the signing bonus.

I had fifteen minutes last night, so the oil pressure sender is done, I had to use a street elbow. It runs pretty well, other than stinking up the garage. No leaks!

Congrats!  The list must be getting pretty small, no?!

I'm drowning in backspacing. 

18x9 , 255/55R18

Et LT-III

The typical one piece cast wheel is only available in 5-6 1/2" backspacing. I think I would prefer like 4.5 front and maybe 4 rear. I have the speedway wheel tool thing with the tire simulator attachment and I'm trying to figure out how to use it correctly. I also don't want to spend double on the wheels when I could run a 1" spacer that I could dial after the wheels arrive. 

I got the wiring cleaned up, ran the oil pressure sensor, tach, fuel sensor, water temperature for the gauges. I'm almost through with Tim getting the spacers for the gauges dialed. I have the dash middle section dialed. The headlights work as they should now. 

Just a few more steps

BTW for those mathing at home. I have the unfortunate narrow earlier rear end. 

I think I should just buy the 5" and deal with spacers to fine tune. I don't know. 

Superlite:

https://transamraceengineering.com/collections/superlite/products/spl1795b

No weights, allows slight negative offset

Et mags

https://www.etmags.com/index.cfm/page/ptype=product/product_id=17/category_id=19/mode=prod/prd17.htm

No weights, 5" backspacing smallest allowed. 

What else? They are both around $400. 

Check this out. 

Tim 3D printed these. Just have to nail down the end sections and glue/paint it. I'll use magnets to hold it on. 

I think I like the superlites better, but it's a tossup. I too am looking at buying a set of square wheels and dialing in the final fitmet with spacers. 

Here's where I am. The fronts would probably work well with a 5-in backspacing on a nine inch wide wheel. If I needed to I could dial that with a little bit of spacer 

. 

The rears are another story. I think I want a 3 and 1/2-in backspacing. I could special order that but it cost $619 instead of $400. Part of me says do it, part of me says that rear end is narrow and someday I might want a different one and then the wheel wouldn't fit. Part of me says a 1.75" spacer is going get me close enough. 

Part of me says order the fronts first and try them on the rear. 

Part of me says I can run a wider tire on the rear to help. 

Just buy the ones that fit the way you want.

It'll be a bit of a hit now, but five years from now you'll still love the look and won't remember how much you paid.

SkinnyG said:

Just buy the ones that fit the way you want.

It'll be a bit of a hit now, but five years from now you'll still love the look and won't remember how much you paid.

TRUTH

SkinnyG said:

Just buy the ones that fit the way you want.

It'll be a bit of a hit now, but five years from now you'll still love the look and won't remember how much you paid.

In for $20

Aww thanks. No need to take up a collection this time, I have enough money now I think. Let me send the team a video later and I'll explain. 

At the risk of overcomplicating things, would the correct width rear end from a ‘72 be cheaper than the custom offset for the rear wheels?

dj06482 (Forum Supporter) said:

At the risk of overcomplicating things, would the correct width rear end from a ‘72 be cheaper than the custom offset for the rear wheels?

I had that argument with myself. 

No. 

Because I did the leaf spring perches, damper mounts, sway bar mounts, and brake lines all myself and don't feel like doing them all again.  

tuna55 said:

dj06482 (Forum Supporter) said:

At the risk of overcomplicating things, would the correct width rear end from a ‘72 be cheaper than the custom offset for the rear wheels?

I had that argument with myself. 

 

No. 

 

Because I did the leaf spring perches, damper mounts, sway bar mounts, and brake lines all myself and don't feel like doing them all again.  

 

 

Sounds like wheels are the easy button!

dj06482 (Forum Supporter) said:

tuna55 said:

dj06482 (Forum Supporter) said:

At the risk of overcomplicating things, would the correct width rear end from a ‘72 be cheaper than the custom offset for the rear wheels?

I had that argument with myself. 

 

No. 

 

Because I did the leaf spring perches, damper mounts, sway bar mounts, and brake lines all myself and don't feel like doing them all again.  

 

 

Sounds like wheels are the easy button!

I'm... ::shudder:: at the point that I have more money than time. 

Also the wheels are totally already on their way here.