75gmck25's latest activity
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75gmck25 replied to the thread AC control vacuum lines.They usually sell it at the parts store in two sizes - GM hard vacuum line. You can splice it with small sections of rubber vacuum line... -
75gmck25 replied to the thread Problematic Starting - rotate crank before starter engages?.Also make sure it’s installed with real Chevy starter bolts. They have a knurled section that helps everything to align properly...
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75gmck25 replied to the thread Unable to identify steering column piece.They sell replacements in a kit to repair a GM ignition rack. Check yours carefully for cracks, and replace it if any part of it seems...
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75gmck25 replied to the thread No Defrost.You can use a hand vacuum pump to pull vacuum on the actuator and see if it works. If it still works, then it’s probably the lines to...
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75gmck25 replied to the thread Belt squeal (while accelerating)/alternator question.I have used the same 15445 Belt with a 12si on my ‘75 350 for many years. The only time I get a short belt squeal is if the battery is...
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75gmck25 replied to the thread 2.5” exhaust kit for 85 suburban?.If you have a relatively stock vintage 454, slightly smaller exhaust will not make much difference. Just make sure you get good flowing...
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75gmck25 replied to the thread 2.5” exhaust kit for 85 suburban?.There are many 2 1/4” kits, so they are reasonably priced and easy to find. There is only one off the shelf 2 1/2” kit for 2WD vehicles...
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75gmck25 replied to the thread Fitech efi on 350 question.The FiTech “wet manifold” design is similar to many other aftermarket EFI systems. Individual port injection is better overall, but...
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75gmck25 replied to the thread Taller tires for my 1976 K20.Was there ever an OEM “lighter” version of the 8 lug steel wheels? All major manufacturers used the same 8 lug pattern for a while...
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75gmck25 replied to the thread Fusible Link?.I used a TS-6 sending unit on my ‘75 and it is a pretty close match to proper temperature reading. The correct ‘75 vintage GM sending...
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75gmck25 replied to the thread new to me 75 turn signal issue hlp.When I replaced the turn signal switch on my ‘75 the switch they gave me did not plug into my wiring correctly. The spacing of the flat...
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75gmck25 replied to the thread Fuel Tank Replacement.For an ‘86 you probably need a 3 port sending unit (feed from pump, return to pump, and vent). Get the right one now so you can set...
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75gmck25 replied to the thread Another Question!!.The easiest choice for a simple install with original brackets is the 94 amp 12si alternator. It bolts on just like the original (which...
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75gmck25 replied to the thread Dual tank wiring.How long since that passenger tank has been used routinely? The sending unit resistance sweep is a very simple mechanism, with a...
