Question?????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Andy4639 · 10-29-2019, 10:18 AM

Does anyone know what year GM went from glass fuses to the new Mini type in trucks? The little plastic square ones. I want to try and find the first year truck and see how hard it is to swap it over on my daughter's 68 truck build.
From this to:

This:

geezer#99 · 10-29-2019, 11:10 AM

I think it was about the year they went to an hei.
1975.

Search with google images shows several in 75.

https://www.google.com/search?tbm=is...10.8mrFq1wlFpw

Andy4639 · 10-29-2019, 11:29 AM

Thanks,
I found it to be 77 are 78 but that should be close enough. I'm going hunting soon. Hope to get a whole harness for cheap!

JustToxic · 10-29-2019, 12:55 PM

If you can't find a complete used harness for cheap. Speedway sells a good 20 or 22 circuit universal harness for about $189 if I remember correct.

Andy4639 · 10-29-2019, 08:09 PM

Quote:

Originally Posted by JustToxic

If you can't find a complete used harness for cheap. Speedway sells a good 20 or 22 circuit universal harness for about $189 if I remember correct.

I found a new 21 circuit one for $99.99! Is it any good is another question!

https://www.google.com/shopping/prod...QSzAB2bHQKbEAE

Mike C · 10-30-2019, 07:35 AM

The EZ Wire harness is less than twice that expensive, and it is good.

Andy4639 · 10-30-2019, 11:37 AM

Well right now the plan is for a later model one and hopefully it has all the wiring I need for the upgrades already in it.

One thing I have found on the new harnesses is to check and make sure they have all the things you want. Like double blinker fittings, some don't have them like our trucks use. Make sure you get it for a auto so it has the pigtails for the NSS also.

BigBird05 · 10-30-2019, 06:27 PM

If your going junk yarding, remember to either get a dash harness that match's your engine/ forward lamp harness or get those to match the "new" dash harness. You'll need the engine bay connectors. P.S. I have a lot of Factory terminalls and stick fuses.

Andy4639 · 10-30-2019, 09:03 PM

Quote:

Originally Posted by BigBird05

If your going junk yarding, remember to either get a dash harness that match's your engine/ forward lamp harness or get those to match the "new" dash harness. You'll need the engine bay connectors. P.S. I have a lot of Factory terminalls and stick fuses.

Thanks, I'm going some time next week I hope maybe this Friday not sure yet.
I plan to get the under dash harness and the motor side from the same vehicle.

10-29-2019, 10:18 AM	#1
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Question?????? Does anyone know what year GM went from glass fuses to the new Mini type in trucks? The little plastic square ones. I want to try and find the first year truck and see how hard it is to swap it over on my daughter's 68 truck build. From this to: This: __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

10-29-2019, 11:10 AM	#2
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,709	Re: Question?????? I think it was about the year they went to an hei. 1975. Search with google images shows several in 75. https://www.google.com/search?tbm=is...10.8mrFq1wlFpw

10-29-2019, 11:29 AM	#3
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Question?????? Thanks, I found it to be 77 are 78 but that should be close enough. I'm going hunting soon. Hope to get a whole harness for cheap! __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

10-29-2019, 12:55 PM	#4
JustToxic Registered User Join Date: Jul 2016 Location: Elkhart, Indiana Posts: 292	Re: Question?????? If you can't find a complete used harness for cheap. Speedway sells a good 20 or 22 circuit universal harness for about $189 if I remember correct. __________________ 1967 Chevy C20 to K20 Conversion "Simply Toxic" http://67-72chevytrucks.com/vboard/s...d.php?t=749409 1971 Chevy C20 Custom Camper LS Swap http://67-72chevytrucks.com/vboard/s...d.php?t=763775

10-30-2019, 07:35 AM	#6
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,723	Re: Question?????? The EZ Wire harness is less than twice that expensive, and it is good. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

10-30-2019, 11:37 AM	#7
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Question?????? Well right now the plan is for a later model one and hopefully it has all the wiring I need for the upgrades already in it. One thing I have found on the new harnesses is to check and make sure they have all the things you want. Like double blinker fittings, some don't have them like our trucks use. Make sure you get it for a auto so it has the pigtails for the NSS also. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

10-30-2019, 06:27 PM	#8
BigBird05 Registered User Join Date: Aug 2019 Location: Cheraw Posts: 1,300	Re: Question?????? If your going junk yarding, remember to either get a dash harness that match's your engine/ forward lamp harness or get those to match the "new" dash harness. You'll need the engine bay connectors. P.S. I have a lot of Factory terminalls and stick fuses.

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