![]() |
|
![]() |
#1 | |
Almost Satisfied
![]() Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,932
|
Re: 1968 GMC - Ol' Blue
Quote:
__________________
1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far." |
|
![]() |
![]() |
![]() |
#2 | |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Quote:
Here's a link to a thread where I found all the info for both scenarios: https://www.67-72chevytrucks.com/vbo...d.php?t=617142 Post #9 (also by ls1nova71) shows the GM schematic for the 3-relay/2 fan setup without A/C. Further into the thread, post #49 from dayj1 has a bunch of schematics on how to keep the PCM and Vintage Air happy. It looks like the links to the pictures are broken, but one of the last 2 diagrams on that post are what I plan on using. I'll reach out to dayj1 about the broken links.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
|
![]() |
![]() |
![]() |
#3 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
You guys....it runs! I mean, it really RUNS. Saturday we got a lot done:
-Sealed up fuel pump leak (thank you Rectorseal 5) -Finished the trans fluid lines -Finished the coolant lines -Bled the brakes -Installed shift linkage -Filled all fluids We had it running just before lunch - I couldn't believe that it fired right up. We finished up a few items after lunch and by 4:30, it was ready for its maiden voyage. So we threw the seats in it and put about a mile on it. It was starting to get dark, it was a little chilly, I don't have any glass in it and we had to hold the doors closed, but it was awesome. This thing flat out RUNS. I was so glad to hear it start up and that most everything works. No check engine light, no leaks, fans function just as they should, and it's got a nice chop at idle. The steering is easy and the brakes are strong. We were doing about 25 and I gave it about half throttle and the tires broke loose since there's hardly any weight on the back.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
#4 |
Almost Satisfied
![]() Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,932
|
Re: 1968 GMC - Ol' Blue
Oh man! That is awesome to hear. Very excited for you. You did a good job to get that far and not have any bells, whistles, or leaks.
__________________
1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far." |
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Jun 2018
Location: Texas
Posts: 1,353
|
Re: 1968 GMC - Ol' Blue
SWEET!!
![]() ![]() ![]() That's gotta feel good man. Congrats. I wanna see two black strips on pavement real soon!
__________________
TA_C10 Stage 1 build - http://67-72chevytrucks.com/vboard/s....php?p=8333444 "It's only money". ![]() |
![]() |
![]() |
![]() |
#6 |
Registered User
Join Date: Apr 2014
Location: Azle,Texas
Posts: 2,248
|
Re: 1968 GMC - Ol' Blue
Way to go man! Congratulations!
![]()
__________________
Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
![]() |
![]() |
![]() |
#7 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Thanks guys. It was a huge accomplishment and I'll be starting it just to hear it run every chance I get now. But I have to wait until I have the bed on to take it on a real drive.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
#8 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
I cleaned up/rebuilt the marker lights. New lenses, gaskets, and lamps. I'm developing an appreciation for OEM parts. For instance, these buckets are quality pieces and no repro part could ever match it. All I did was clean it up a little bit and it looks as degraded after 51 years as a modern piece would look after 10 years.
I didn't use the rivets that came with the lenses because I hate them, so I used aluminum rivets we had on hand. Then I found out that I need to relocate my trans cooler lines because I can't get this assembly in on the passenger side!
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
#9 |
Registered User
Join Date: Nov 2012
Location: 9
Posts: 862
|
Re: 1968 GMC - Ol' Blue
Looking good, you gotta love that blue in the sun.
|
![]() |
![]() |
![]() |
#10 |
Almost Satisfied
![]() Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,932
|
Re: 1968 GMC - Ol' Blue
Truck looks hot on a chilly day in Western Colorado! You have came a long ways in what seems like a short time. Hoping to get back on mine after the first of the year. Wife decided she needed new windows for the house....
__________________
1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far." |
![]() |
![]() |
![]() |
#11 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Thanks guys. That day, the sun came out for about 10 minutes just as I was finishing up a couple things to take it for a spin. I have to get it done before I get married because it won't be as easy to spend time and money on projects after that. At least that's what I'm told!
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
#12 | |
Registered User
Join Date: Apr 2014
Location: Azle,Texas
Posts: 2,248
|
Re: 1968 GMC - Ol' Blue
Quote:
Brian
__________________
Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
|
![]() |
![]() |
![]() |
#13 | |
Registered User
Join Date: Nov 2005
Location: Paducah, Ky
Posts: 393
|
Re: 1968 GMC - Ol' Blue
Quote:
Looking great, you have come a long way this year... |
|
![]() |
![]() |
![]() |
#14 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Happy New Year everyone!
My dad and I had the day off yesterday and we got a lot done on the sound system. We built an enclosure to take place of the stock fuel tank (using the fuel tank mounting holes) to house two subs and two speakers and the amp, wrapped in vinyl. The subs are shallow 10" driven by a 1000W amp and the speakers are 6" components. I have slightly smaller speakers to install in the front kick panel vents next and the system will be complete. The specs on the subs indicate a minimum box volume of .35 cu ft and I'm at .44 so it worked pretty well. The system (even without front speakers) sounds great. They are slim subs with small boxes, but I'm not looking to shake the truck apart, just get some good bass. When we modified the dash, we used a double din sleeve from an Alpine double din unit we had laying around. What I found while looking for a head unit was that Alpine seems to be consistent with their chassis size, so the head unit I bought fit perfect in the sleeve. I like this iLX-W650 because it's so shallow, light, and affordable. The only trick with it is that it's got a safety feature in which a lot of the functions and settings are unavailable unless the parking brake is on. However, "parking brake engaged" is a relative term - it just means that the unit needs to see a ground on the parking brake wire in order to unlock those functions. But it can't be a constant ground, the unit needs to see the ground appear after it's turned on. So I just ran it to my ground buss bar under the dash and installed a toggle switch in line so I can fool it whenever I need to. No relay or microbypass needed. My console also arrived - it was pulled out of a 14-18 GM pickup/SUV before it went into service for law enforcement so it's basically brand new and fits perfect between the seats. They robbed the USB and charging ports out of it, but my head unit came with a USB cable that I ran under the carpet so I can plug my phone in from the console and charge or use Apple CarPlay. I know some guys are cringing at the quantity of speakers and the modified dash, but I value a good sound system and I love the double din receiver.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
#15 |
Almost Satisfied
![]() Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,932
|
Re: 1968 GMC - Ol' Blue
Speaker box looks good. Giving me ideas...
__________________
1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far." |
![]() |
![]() |
![]() |
#16 |
Registered User
Join Date: Jun 2018
Location: Texas
Posts: 1,353
|
Re: 1968 GMC - Ol' Blue
Yeah I like the speaker box too. But those look like coax speakers not components... Components normally have the crossover box and tweeters mounted outside the mid-woofer? I'm no expert, just been doing a lot of research for my truck. I'm really happy to hear your details having .44 cu ft. Makes sizing subs easier for me now
![]() I plan to do something similar. I like the idea of the new speaker mounts in the cab corners from brotherstrucks but not sure about that yet. I plan to do components in my doors and remote mount the tweeters somewhere higher in the door. Or maybe put them in kick panels only. I dunno. P.O. cut holes in the door for 6x9's so..... Sweet man ![]()
__________________
TA_C10 Stage 1 build - http://67-72chevytrucks.com/vboard/s....php?p=8333444 "It's only money". ![]() |
![]() |
![]() |
![]() |
#17 | |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Quote:
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
|
![]() |
![]() |
![]() |
#18 |
Registered User
Join Date: Apr 2014
Location: Azle,Texas
Posts: 2,248
|
Re: 1968 GMC - Ol' Blue
I have the same speaker in a 10 inch version, only one of them, in my daily driver... a single cab Sierra. It rocks flat out in such a small space. With those 2 subs, you’re liable to shake the fillings out of your teeth. Looks great, as usual.
![]()
__________________
Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
![]() |
![]() |
![]() |
#19 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Thanks. I'm not going for a bumping system so it's a little overkill, but I wanted it to be symmetrical and have plenty of adjustment.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
#20 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
The front end lighting is done. I bought the halogen upgrade headlights from LMC and I'm pretty pleased with them. They use a modern 9007 lamp and I opted for the blue-coated lamps for whiter light. Working with 4 headlights makes me jealous of you Chevy guys - it's twice the struggle and there's barely enough room in front of the core support for the housing and lamp pigtail so the wires are almost stressed on the inners. Also, I couldn't remember how the spring hooked on the buckets so I fought that for awhile.
But the LED sidemarker lights from SOKY were easy to install and look great too. I need to figure out how to reset the glass in the channels though. I haven't been able to find much info on this task yet. It seems from the factory they were just pressed in with some rubber without any adhesive. I ordered the "glass setting rubber" from LMC and it's basically just strips of rubber. The passenger glass fell out of the channel during door disassembly so I took the driver side apart and sandblasted and painted the channels while I was at it. If anyone has any tips on this, let me know please.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
#21 |
Almost Satisfied
![]() Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,932
|
Re: 1968 GMC - Ol' Blue
Potter, I'm trying to change out the fittings on my Astro Hydro unit. Do you have any idea what size the fittings are? I'm thinking I need the RUS-648060 for the Input and the RUS-648080 for the output, but don't know for sure. I also can't find what the size of the low pressure return fitting is.
I want to put new fittings that will 90 out and give me more control over where my lines run. Thanks
__________________
1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far." |
![]() |
![]() |
![]() |
#22 | |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Quote:
http://www.hydratechbraking.com/hose_fittings.html
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
|
![]() |
![]() |
![]() |
#23 |
Senior Member
![]() Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,949
|
Re: 1968 GMC - Ol' Blue
The truck's looking good!
What seats are you going to use with that console?
__________________
ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
![]() |
![]() |
![]() |
#24 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Thanks!
I'm using the 04 Escalade buckets. They're graphite so they won't match everything else, but they're fine for now since I'm going to recover them eventually.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
#25 |
Senior Member
![]() Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
|
Re: 1968 GMC - Ol' Blue
Got a little bit done this weekend. The sound system is done now - I fabbed up a couple plates for my front kick panel area speakers to hold 5-1/4" coax speakers. I had sealed up the vent from the outside when I did the rust repair. I had to use a 1" spacer since the vents aren't deep enough for the speaker.
Also took apart my vent windows and got those blasted and painted. And glued the door glass to the sashes. I used 3M Fast Cure windshield urethane. It came out of the gun pretty easy since I heated it to at least 100 degrees, but it does start drying out pretty quick so I'll leave it clamped for a week.
__________________
1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
![]() |
![]() |
![]() |
Bookmarks |
|
|