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My new to me '91 K1500 Ext Cab Long Bed #4646510
01/26/18 12:33 AM
01/26/18 12:33 AM
Joined: Dec 2006
Posts: 2,123
Maryland
Spartuss Offline OP
Spartuss  Offline OP

Joined: Dec 2006
Posts: 2,123
Maryland
I've made a previous post about my purchase of this truck. The weather was nice and I had the opportunity to wash, wax and clean the inside of the truck. Here are few photos. It's a 5.7L "350" V8 with 3.73 Axles and Axle Positraction (G80 equipped). I have no idea why the images were flipped when uploaded. If anybody knows how to flip them, please let me know.








Was once a BITOG addict!
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646512
01/26/18 12:41 AM
01/26/18 12:41 AM
Joined: Nov 2008
Posts: 9,592
Phoenix
dishdude Offline
dishdude  Offline

Joined: Nov 2008
Posts: 9,592
Phoenix
I REALLY like that truck. For some reason, I'm even digging the old man bug shield and cap. It just all works together. thumbsup


2018 Challenger SRT 392 PUP 0w-40 Wix 57899XP
2018 GTI
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: dishdude] #4646518
01/26/18 12:57 AM
01/26/18 12:57 AM
Joined: Dec 2006
Posts: 2,123
Maryland
Spartuss Offline OP
Spartuss  Offline OP

Joined: Dec 2006
Posts: 2,123
Maryland
Thanks! It was driven by an old man! I've always wanted to have truck around the house, especially with insurance rates so low on these. Soon, I will start doing the fluids and preventive maintenance on this thing.


Was once a BITOG addict!
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646519
01/26/18 12:57 AM
01/26/18 12:57 AM
Joined: Dec 2017
Posts: 66
Idaho
RonRonnster Offline
RonRonnster  Offline

Joined: Dec 2017
Posts: 66
Idaho
That's a solid older Chevy - great find! Around here it's hard to find one under 220,000 miles that hasn't had the snot beat out of it.


- 2007 GMC Yukon XL Denali - 6.2L / 81k mi.
- 1998 Chev K1500 4x4 - 5.7L / 155k mi.
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646552
01/26/18 02:56 AM
01/26/18 02:56 AM
Joined: Dec 2009
Posts: 26,842
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline

Joined: Dec 2009
Posts: 26,842
Regina, Saskatchewan, Canada
That brings back memories! Very nice! My dad has one of a similar vintage, black, with the 6.2.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646661
01/26/18 08:19 AM
01/26/18 08:19 AM
Joined: Jun 2003
Posts: 18,394
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline

Joined: Jun 2003
Posts: 18,394
Deplorable in apple valley, ca
Engine will run forever. The front suspension and transmission wont.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Garak] #4646664
01/26/18 08:23 AM
01/26/18 08:23 AM
Joined: Aug 2010
Posts: 6,229
Champlain/Hudson Valley
Kira Offline
Kira  Offline

Joined: Aug 2010
Posts: 6,229
Champlain/Hudson Valley
A friend had an '89 K1500 short bed. What a truck! SBC "383" conversion, revised diffs (gone were the little "swing out" fingers), 'twas a manual.
Oddly, the clutch slave was on the passenger's side. This necessitated a snaky hydraulic line.
I figured the transmission would be more popular in UK applications so GM put it on the right side.

Does your '91 have the "shared bulge" in the glove compartment? Half the bulge is in the back of the glove box and the other half bulges out the firewall. It contained the new electronics. My friend's fuel system came with a tuned chip and a more stock one.

Does your engine have the separate, nascent fuel control system?
'Twas a 5' X 6" X1.5" black plastic thing on its own bracket ahead of and to the right of the carb?

HERE'S THE KICKER: Upon doing a head job (thank me very much!) and installing headers the engine ran badly.
We tried adjusting the valves several times. My pal tried replacing the push rods and more.

It turns out the BATTERY CABLE had a tap off to power the fuel system.
The battery cable's clamp was full of corrosion. A new cable cured the horrid condition.

His vehicle also had a muffler AHEAD of the air cleaner's snorkel.

I love your hood mounted bug deflector too but it does seem a bit aged. It might shatter if you ever go above 55 mph!

Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646668
01/26/18 08:34 AM
01/26/18 08:34 AM
Joined: Apr 2016
Posts: 1,202
Campbellsville, KY
Alex_V Offline
Alex_V  Offline

Joined: Apr 2016
Posts: 1,202
Campbellsville, KY
Very nice. The positrac can be annoying in some instances but a lifesaver in others - not to mention pricey to retrofit if you wanted it but didn't have it. 350+3.73's = good pulling! If you can keep the 700r4 happy.


To quote a friend, "Synthetics, man."

'85 GMC C3500, 454, 132K
'82 Mercedes 300CD, OM617 turbo, 173K (totaled 2018, in rehab)
'85 Mercedes 300TD, OM617 turbo, 217K (wife's)
'67 Suburban, 350, 331K
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646700
01/26/18 09:17 AM
01/26/18 09:17 AM
Joined: Mar 2004
Posts: 21,810
Upstate NY
Donald Offline
Donald  Offline

Joined: Mar 2004
Posts: 21,810
Upstate NY
It will get sucking down the gas, although the 350 is a great engine. Is it carb or TBI? The 350 truck and marine engines were 4 bolt mains and the cars were 2 bolt mains. I had a 350 in my 93 Suburban and currently have one in my Mercruiser powered boat.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646702
01/26/18 09:20 AM
01/26/18 09:20 AM
Joined: Jun 2008
Posts: 5,538
In the Garage...
ls1mike Offline
ls1mike  Offline

Joined: Jun 2008
Posts: 5,538
In the Garage...
Was that is clean!!! Both of mine an 88 and 89 were solid truck that ran well over 200,000 miles.

Enjoy!


Mike
00 Trans Am WS6 5.7 LS1
02 Silverado 2500HD 6.0
14 Caprice PPV 6.0
15 Malibu LTZ Turbo
12 Passport TT
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646737
01/26/18 09:54 AM
01/26/18 09:54 AM
Joined: Jan 2018
Posts: 31
Chester County/Pa.
Dobbie Offline
Dobbie  Offline

Joined: Jan 2018
Posts: 31
Chester County/Pa.
Really nice find & congrats. Looks like the old man took really good care of it & kept it in a garage? Body is in great shape for the year. I like the cap on the back but the front bug deflector would have to go. How many miles on the old beast? My Uncle Keith had a 1990 4W4 single cab short bed with that motor & trans & same color as yours. Almost made 200k before he sold it.

Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4646875
01/26/18 11:52 AM
01/26/18 11:52 AM
Joined: Feb 2013
Posts: 11,341
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline

Joined: Feb 2013
Posts: 11,341
Phoenix, AZ
Wow, that really is a nice truck. Keep it rust proofed and it'll last you a long time.

Even if the engine blew, throwing in a crate motor isn't that expensive.


2015 Hyundai Sonata 2.4L 92k STP Synthetic HM 10w30 & Wix
2000 Toyota Camry 2.2L 232k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 148k Mobil 1 HM 10w40 & Fram Ultra
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Alex_V] #4648122
01/27/18 04:46 PM
01/27/18 04:46 PM
Joined: Oct 2006
Posts: 1,900
Oshawa, Ont. Canada
irv Offline
irv  Offline

Joined: Oct 2006
Posts: 1,900
Oshawa, Ont. Canada
Originally Posted By: Alex_V
Very nice. The positrac can be annoying in some instances but a lifesaver in others - not to mention pricey to retrofit if you wanted it but didn't have it. 350+3.73's = good pulling! If you can keep the 700r4 happy.


What are you referring too? Every truck I have ever owned I have opted for a posi-trac and I don't ever recall any problems with any of them?

To the OP. I assume your pics were taken from a phone? If so, mine does the same thing and the only way to fix them, that I know of, is to edit them first somehow like do a bit of cropping or resizing then saving them. If you don't save them, then they will post like your's did. Like your's, some are OK, but most are upside down or sideways.

Congrats with your new truck. Looks to be in great shape! cheers


2017 Chevy Impala 3.6 L.
2013 Ram 5.7 L Hemi Bighorn QC 4x4
2008 Chevy Malibu 2.4 L Ecotec
Pennzoil Platinum and/or Pennzoil Ultra Platinum in all 3.
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4653576
02/02/18 01:02 AM
02/02/18 01:02 AM
Joined: Dec 2006
Posts: 2,123
Maryland
Spartuss Offline OP
Spartuss  Offline OP

Joined: Dec 2006
Posts: 2,123
Maryland
This is a TBI truck with the early 1991 build that still has the half moon gauges instead of the needle gauges .

Someone suggested Rust-Oleum Black paint to spray the bottom with (4-5 cans) and apply once a year at home. Would this do the trick for rustproofing the undercarriage?

Last edited by Spartuss; 02/02/18 01:03 AM.

Was once a BITOG addict!
Re: My new to me '91 K1500 Ext Cab Long Bed [Re: Spartuss] #4653602
02/02/18 02:49 AM
02/02/18 02:49 AM
Joined: Sep 2010
Posts: 8,167
Texas
4WD Offline
4WD  Offline

Joined: Sep 2010
Posts: 8,167
Texas
Prime or touch up rust with this + then top coat


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