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88GMCtruck's 98 Silverado Towpig Build: "Black Fox"

GM Guy,

2 door pickups: 12344178 (still available online at Pace Performance)
SUVs (no clue if Tahoe or Suburban, I saved the P/N & "SUV", not the full application, my bad...): 12344177 (available online from variety of places)
 
It's been awhile.....

Been collecting a few parts and doing some junkyard runs.... Finally got a chance to work on this beast a bit!

Few parts collected for my trucks and a friend's truck
29479A66-591A-4BF7-8D0D-B9368750DFCC.jpg


Did a bit of wiring cleanup.... Adding dioides to map lights to work with dome and independant
3D42D0FE-3C56-449B-AE9F-FB1D717149AB.jpg


Harness built. Autodim, Compass & Temp Mirror, S-series trip computer, Homelink all installed in pickup console with LED lights.
DAA82697-B2D5-40BF-8C79-660AD37462E4.jpg


Added a temp sensor inside the cab (trip computer has temp display too, no use in having two exterior temps readouts)
6EA6C0E0-D314-46FC-9FC9-769E2B7415CD.jpg

98E051FE-9E9B-4D3F-8A25-894AE8DB38EC.jpg


Working on stuff!
58892458-820B-4ED8-ABCF-5DB0CAE538FB.jpg

A6BA0CD5-58AC-4758-87D3-6C51E41D77D6.jpg


Console installed
8CC1BD31-0FCC-4620-9AB4-BA7103398B67.jpg


Steering wheel audio controls installed
FC895F60-8EEE-420B-AF79-A857439AEA08.jpg


I'm one of few who's excited to see this on the display!
8D3BAC43-0E4F-41FC-9024-948BFD2CF732.jpg

29EF1AFB-B211-4468-8012-E4E7FDC729FC.jpg


I didn't snap any pictures but I picked up a perfect OEM GMC grille in black for $40 at the pick-n-pull.... Fits better than the re-pop and looks better since it's not raw plastic.

Also, picked this neutral crewcab rear seat up for $80. It was REALLY dirty but came out decent with a pressure washer, simple green and mineral spirits. It'll be going in Dad's 75 Silverado.
F2A19E89-9727-4D70-8EE6-C9055E597EA6.jpg

A2CA66BA-9D8D-470F-8B4D-4F2B4CB79987.jpg

A1ACC0A4-73D3-4D7F-8CBD-1F1C5BF6C88B.jpg
 
It's been awhile.....

Been collecting a few parts and doing some junkyard runs.... Finally got a chance to work on this beast a bit!

Few parts collected for my trucks and a friend's truck
29479A66-591A-4BF7-8D0D-B9368750DFCC.jpg


Did a bit of wiring cleanup.... Adding dioides to map lights to work with dome and independant
3D42D0FE-3C56-449B-AE9F-FB1D717149AB.jpg


Harness built. Autodim, Compass & Temp Mirror, S-series trip computer, Homelink all installed in pickup console with LED lights.
DAA82697-B2D5-40BF-8C79-660AD37462E4.jpg


Added a temp sensor inside the cab (trip computer has temp display too, no use in having two exterior temps readouts)
6EA6C0E0-D314-46FC-9FC9-769E2B7415CD.jpg

98E051FE-9E9B-4D3F-8A25-894AE8DB38EC.jpg


Working on stuff!
58892458-820B-4ED8-ABCF-5DB0CAE538FB.jpg

A6BA0CD5-58AC-4758-87D3-6C51E41D77D6.jpg


Console installed
8CC1BD31-0FCC-4620-9AB4-BA7103398B67.jpg


Steering wheel audio controls installed
FC895F60-8EEE-420B-AF79-A857439AEA08.jpg


I'm one of few who's excited to see this on the display!
8D3BAC43-0E4F-41FC-9024-948BFD2CF732.jpg

29EF1AFB-B211-4468-8012-E4E7FDC729FC.jpg


I didn't snap any pictures but I picked up a perfect OEM GMC grille in black for $40 at the pick-n-pull.... Fits better than the re-pop and looks better since it's not raw plastic.

Also, picked this neutral crewcab rear seat up for $80. It was REALLY dirty but came out decent with a pressure washer, simple green and mineral spirits. It'll be going in Dad's 75 Silverado.
F2A19E89-9727-4D70-8EE6-C9055E597EA6.jpg

A2CA66BA-9D8D-470F-8B4D-4F2B4CB79987.jpg

A1ACC0A4-73D3-4D7F-8CBD-1F1C5BF6C88B.jpg

Looking great!
 
Been working a ton but tinkering with the truck when I have time. The stereo had lots of lights out in it, and the replacement CD player I picked up was no better. Decided it was time to fix it for ever with LEDs. Which also meant doing the entire dash and doors as well. Stereo took about 2 hours considering they are soldiered in. I used cool white LEDs throughout and the blue coating in the HVAC stereo and cluster create a light blue color that I quite like.

2AED6A3F-C050-4A13-83FC-3A0E797A3ADD.jpg

DF27A25A-1F2C-4F01-B739-9918A5A279A1.jpg


Few shots of the fox with the new GM grille installed. A damn good score at $40
BB289680-54EE-4E4B-878B-DD6C2EB709A7.jpg

6B20754D-524E-47DB-B095-55FC35414303.jpg

03ACC246-F17F-4D72-8763-C0B3DFBCF294.jpg

9B4BB6ED-E495-4043-A9E1-C795C970ACF1.jpg


Few weeks ago I replaced the fuel pump with a new delco unit. zip off the bed bolts, fuel neck, ground straps and unplug the lights and off she comes.
2B5C440F-DC23-41C5-8DEB-30945933EDF9.jpg

25462D6D-2BDC-4C7D-A17D-A94207CFD601.jpg

6B6F2CE5-C541-49E5-912F-5F32CF3AE5AC.jpg

FD280F2C-BEE9-4C8C-BCC6-1CDDC4D8F3C6.jpg

D889B7C4-AE08-4836-859D-1419DCD58AC0.jpg


While the bed was off the front repair of the forward brace was welded. The PO had a camper with bed mounted brackets. The camper ripped both of the braces off the frame, and pulled all the spot welds through the bed floor. Frame mounted camper brackets are the only thing to use, ever.
CF3F49E8-0D0D-4080-8414-769014ED0349.jpg


Also did a little forward lighting upgrade. With the help of my good friend 83GMCK2500, we removed the OEM harnesses, dissected the BS headlight wiring, and re-created them using all 12-gauge wiring. During this time wiring for fog lights and driving lights were added. Used 4 heavy duty Bosch relays with weatherpack connectors to power the circuits, lowbeam, highbeam, driving and fog lights. The highbeam switch will trigger low, high and driving lights for a 6-hi combination. The fogs are independently switched so effectively you can have 8-hi. Everything is fully soldiered and weatherproofed.
9157DED2-36E7-4F1E-8865-62E96B2D0437.jpg


After dissection
07EBCD31-CD61-42B7-82A3-8BAFE85AE035.jpg


All new gauge leads.
47B6EC31-8EEB-49F2-8782-918131C0A267.jpg



Wiring
B3B89356-A99F-4645-B388-048633717C18.jpg

78B28862-D54C-4965-9405-FA937113C787.jpg

F1D08F12-9E28-42FE-8337-B761D541385D.jpg

49D531D7-C531-4C08-8D2D-1E6C6B4C4471.jpg

1E77D2B6-DB17-4BBD-B882-9719201487A4.jpg


Relay mounting under the ECM
0AEF2504-2D54-4DC9-8D73-F404094607DD.jpg


Completed harness
EA1E5902-91E3-4EAC-BC3A-646133DB4732.jpg

C59EA590-0B16-410A-814A-E32CA45EB6C7.jpg


After adding the harness
89094E0B-D7F1-4A90-848F-85C0AADFCFB7.jpg


During the re-installation I mounted the HID ballast to the headlight brackets
E591A951-01BF-4196-8E57-FCAEDB941DE3.jpg


And created these nifty support brackets that help keep the grille shell pulled back to the core support in the lower corners. The earlier grilles (88-93) have a bracket here, to this day I do not understand why GM didn't add one in the later models. It seems like almost all the grilles fit horribly in the lower corners, factory or aftermarket.
89D26513-9533-4D1D-B137-63FE5306FCBE.jpg
 
so, what did it take to install the steering wheel audio? was the harness already in the truck? and I thought you had and aftermarket cd player?

oops. just re-read the post. you said "replacement" cd player
 
Outstanding build report as usual. Always enjoyed man. :thumbsup:

Sent from my SCH-I535
Thanks Mike!

I see you have a Black & Decker Brite Bar! Bright little suckers for about 20 minutes! :)
Huh, mine is quite a few years old and it lasts for hours on end.

so, what did it take to install the steering wheel audio? was the harness already in the truck? and I thought you had and aftermarket cd player?

oops. just re-read the post. you said "replacement" cd player
These were only in S-series and GMT800 denali/escalades. I did a writeup on it looooong ago.

http://www.thetruckstop.us/forum/sh...9-02-NBS-Steering-Wheel-Audio-Control-Install
 
A little update!

The truck still has the hot start issue, and has a rough idle. After many failed attempts to contact the seller of my injectors, I bought another set which (to my mistake) were too big and rendered the truck way-over fueling itself and barely running. So, it was down for a week. During this time the 88 was removed from storage (mostly just for the heck of it) but during that time I did pick up this side project for a co-worker. 16' trailer I'm doing some wiring and misc on it.

87135AF0-08C5-4B98-A7C4-710E6886851A.jpg

229EBAC7-8385-4A24-9504-4961353D645A.jpg


Anyway, back to the dually.

Took the damned intake off a 3rd time.... 3rd set of injectors i've installed. This time I got the bosch type III injectors. They cleared up the hesitation and the truck runs great....

F8589AA0-0C6B-41FF-A071-D085D9CE6F6F.jpg


BUT THE DAMNED THING STILL HAS THE HARD WARM START.
It has to be something else as this is the second set of injectors, new FPR, fuel filter, fuel pump, new coil, ignition module, cap, rotor, wires and plugs, and a new coolant temp sensor. I need to get my fuel pressure gauge back from my father and I have purchased an OBD2 scanner and am going to start checking sensors as well. It has to be something simple.



Moving on.....

Anyone see these before?

6897DB8E-FCCA-4324-84C0-97A9973DCCA7.jpg


Factory GM cablight LED inserts. They are BRIGHT! I found a good deal on them and ended up with a few extra sets, I'll be selling some soon. They are a huge must for smoked cab lenses....

Here is the driver's outer 2 with lenses off, farthest out with GM insert, next in was 5 SMD amber LED drop-in. These LEDs are brighter than the original 194 bulbs were.
8FE78515-49C5-4753-8C50-D05E91E47876.jpg

4B8B945D-2B40-4BB0-996B-58938EE60D4D.jpg


Here is a head on shot with the driver's outer 2 lights with the GM inserts and lenses back on. The difference is astonishing. Prior to this in daylight, my cab lights weren't even visible.
6C0370B1-CD76-4A6B-A8D6-019D98CA3EE7.jpg


Also, made a quick trip to the junkyard, while looking in some GMT400s for dash switches and sunvisors, I happened across this gem in a 1995 suburban of all things! $38 later, I threw the LEDs in it, put my Odometer in, and blacked out the "PRND321" and "Apply Brake to Shift From Park" markings.
6ED1F31E-9865-4610-8E82-0ABBE8EF85A1.jpg

9CC536F7-42BC-464B-9539-461A508FF142.jpg


I also pulled a driver's side window module from an F-body camaro and wired it to the passenger door. This allows a really cool feature of auto down. I need to source a couple extras for the rear windows as well. 4 Simple connections and away we go.
540111B1-4415-4AA5-AC8C-FFC44D4BD910.jpg
 
Thats cool. Ive been wanting to do something like that. Can you get auto up also? I was thinking of using the switches from something like a Nissan Titan or ???
 
Thats cool. Ive been wanting to do something like that. Can you get auto up also? I was thinking of using the switches from something like a Nissan Titan or ???

You could easily do auto up with an additional module, possibly some creative relay wiring and one module.
 
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