Recent content by legopnuematic
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1977 C20 Heavy duty with 11.15 drums?
Not really a factor in this case, until the introduction of the 9.5 14b SF all 3/4 tons were 10.5 full floats. J55 is the RPO code for HD brakes. You have the JB6 brakes and 11" drums. JB6 master reservoir walls are straight up and down, JB7 has a bulge in-between the bails.- legopnuematic
- Post #3
- Forum: Suspension, Steering & Brakes
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V2500 frame compatibility and advice.
That was quite the thread. It started with trying to remove a cylinder head with the intake still bolted to the other head.- legopnuematic
- Post #14
- Forum: Tech Discussion
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A little bit of everything for sale! 73-91
The GMC badge with tabs should be from a Medium duty. The other one might be from a Top Kick, or not.- legopnuematic
- Post #40
- Forum: For Sale
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V2500 frame compatibility and advice.
In my opinion you’d be better off with a full replacement frame. I feel as there is great potential to make things worse trying to graft two frames together. Not that it couldn’t be done, or hasn’t been. Just not really a weekend project type deal. A donor frame is nice as you can clean and...- legopnuematic
- Post #7
- Forum: Tech Discussion
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Slow cranking when trying to start
Since it is still yet to be answered: 10-11 degrees of timing is not likely going to cause poor cranking unless if you have extremely high static and dynamic compression.- legopnuematic
- Post #5
- Forum: Tech Discussion
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whats every body using.. looking for a new stereo head unit
I've had it up to 90+ passing before. At least with the roads around here I wouldn't want to cruise at that kind of speed. But with the 3.55 gears and 35s (34.5 true diameter) 95 is only 2300rpm so there is a fair big of headroom as far as rpm is concerned, about 130 would be at 3200rpm.- legopnuematic
- Post #34
- Forum: Stereo & Entertainment Systems
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Vortec Head Timing With Progression Ignition
32° is going to be your total advance, that is your base timing + mechanical advance. So if you are base timed at 12°, you want 20° of mechanical advance to get to 32° The vacuum advance should be disconnected (carb port plugged) when setting both initial and checking mechanical advance...- legopnuematic
- Post #2
- Forum: Engine & Performance
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1980 C10 Cruise Control Switch 407437
@Bextreme04 you have a GMT400 cruise setup on your truck don’t you?- legopnuematic
- Post #16
- Forum: Introduction
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Door Hinge Shims
I’m curious, what plant was the gold truck built at?- legopnuematic
- Post #12
- Forum: Paint and Body
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How does this sort of thing happen????
That reminds me of the guy who was drinking brake fluid. He said he could stop anytime he wanted. I’ll see myself out, please refrain from throwing tomatoes until the end of the show.- legopnuematic
- Post #24
- Forum: Engine & Performance
