Bought a used truck…

ls1mike

$50 Site Donor 2022
Joined
Jun 14, 2008
Messages
7,325
Location
In the Garage...
My kid has a 97. It is a good truck, but...I had to do the distributor and spider injection recently. Yours will serve you well.

I still don't understand the unconditional love for the GMT400 and I am a GM guy. I have had 3 of them now an 88 3/4 ton, and 89 1 ton 454 TH400 and my kids 1997 Z71 and while they last a long time they also require more work than either of my GMT800s ever did. The 17 remains to be seen but so far it the best truck I have ever owned, especially for towing.

I just think people forget about TBI stuff, pretty reliable, but no power. Injectors and all types of gaskets were common on my 88 and 89.
The kids 97 has had one 4L60E during it life's already. We just rebuilt the front end, valve cover gaskets, distributor, intake gasket, CPS and valve cover gaskets. I know some of that stuff has already been done once. The good old days were not always good.

The kids 97, 160,000 miles.
20210123_162826.jpg
 

ls1mike

$50 Site Donor 2022
Joined
Jun 14, 2008
Messages
7,325
Location
In the Garage...
If you get the RPO codes out the glove compartment, it should tell you what gears it has. My kid's has 3.73s.
GT4 is 3.73 GU6 is 3.42.

AG2 -- 6-WAY Passenger seat
B35 -- Rear carpet floor mat
B39 -- Carpeted floor
B71 -- Wheel well moulding
B85 -- Body side moulding
C5I -- GVW RATING, 8050 LBS
C5M -- GVW RATING, 6100 LBS
C5P -- GVW RATING, 6250 LBS
C5Q -- GVW RATING, 6300 LBS
C5R -- GVW RATING, 5800 LBS
C5S -- GVW RATING, 6600 LBS
C5U -- GVW, 6800 LBS
C5Z -- GVW, 7200 LBS
C6P -- GVW RATING, 8600 LBS/3900 KG
C6U -- GVW RATING, 9000 LBS
C6W -- GVW RATING, 9200 LBS
C7A -- GVW RATING, 10000 LBS
DD0 -- Left & rt heated power mirror
DF5 -- Inside mirror compass/outside temp
FG5 -- Delco/Bilstein gas shocks
F44 -- CHASSIS, HEAVY DUTY
F60 -- SPRING FRONT, HD
GQ1 -- AXLE REAR, STD RATIO
GT4 -- AXLE REAR, 3.73 RATIO
GT5 -- AXLE REAR, 4.10 RATIO
GU4 -- AXLE REAR, 3.08 RATIO
GU5 -- AXLE REAR, 3.23 RATIO
GU6 -- AXLE REAR, 3.42 RATIO
G80 -- AXLE REAR, LIMITED SLIP (POSITRACTION)
HC4 -- AXLE REAR, 4.56 RATIO
JB6 -- BRAKE, POWER, DISC/DRUM 7200 LBS
JB8 -- BRAKE, POWER, DISC/DRUM 10000 LBS
JD5 -- DUAL POWER, DISC/DRUM 6400 LBS
JD7 -- BRAKE, HYD POWER, DISC/DRUM 8400 LBS
KA1 -- Heated leather bucket seats
KNP -- HD TRANSMISSION COOLING
K05 -- HEATER, ENGINE BLOCK
K34 -- CRUISE CONTROL, AUT0MATIC, ELECTRONIC
K47 -- AIR CLEANER, HIGH CAPACITY
K60 -- GENERATOR, 100 AMP
K68 -- GENERATOR, 105 AMP
KW2 -- GENERATOR, 124 AMP
KC4 -- COOLING SYSTEM, ENGINE OIL
L49 -- ENGINE, DIESEL, 8 CYL, 6.5L
L56 -- ENGINE, DIESEL, 8 CYL, 6.5L, TURB0
L57 -- ENGINE, DIESEL, 8 CYL, 6.5L, HO
L65 -- ENGINE, DIESEL, 8 CYL, 6.5L. TURB0, HO
L76 -- ENGINE, DIESEL, 8 CYL, 6.6L, V8, DI, TURB0, ISUZU
LH6 -- ENGINE, DIESEL, 8 CYL, 6.2L
MM4 -- MERCHANDIZED TRANS, MAN 4 SPD PROVISIONS
MT1 -- TRANSMISSION, AUTO 4 SPD, HMD, THM R2 (4L80-E)
MW3 -- TRANSMISSION, MAN 5 SPD, NVG, 109MM,, 5.61 1ST, O/D
MX0 -- TRANSMISSON, AUTO PROVISIONS, O/D
M20 -- TRANSMISSION, MAN 4 SPD, 117MM, 6.55 1ST
M30 -- TRANSMISSION, AUTO 4 SPD, HMD, 4L60-E, ELECTRONIC
NA1 -- EMISSION SYSTEM, GVW < 8500 LBS
NA5 -- EMISSION SYSTEM, FEDERAL, TIER O
NB8 -- EMISSION SYSTEM, CA/NY/MA/CT EMISSIONS OVERRIDE (REQ FE9)
NC7 -- FEDERAL EMMISIONS OVERRIDE (REQ YF5 OR NG1)
NF2 -- EMISSION SYSTEM, FEDERAL TIER 1
NG1 -- EMISSION SYSTEM, NY/MA/CT
NG5 -- REGISTRATION, EMISSION SYSTEM (50 STATE)
NK3 -- STEERING WHEEL, SPORT, SOFT RIM, SIMULATED LEATHER
NP1 -- TRANSFER CASE, ELECTRONIC SHIFT CONT, TWO-SPEED
NP5 -- STEERING WHEEL, LEATHER WRAPPED
NRQ -- EXHAUST, CLOSE COUPLED
PF4 -- WHEEL, 16x7 ALUMINUM
PO6 -- RALLY WHEEL/TRIM RING
RO4 -- WHEEL, SINGLE RR
RO5 -- WHEEL DUAL RR
MSL -- Mexico city code
UG1 -- 3 channel homelink
X88 -- Chevrolet
ZM9 -- Suburban comfort package
11U -- Primary color metallic peweter
13I -- Lt grey interior
132 -- Leather
xxxxxxxxxxxxxxxx
AAB - MEMORY PACKAGE
AE7 - SPLIT BENCH RECLINING FRT SEAT
AG1 - 6-WAY POWER DRIVER SEAT
AG2 - 6-WAY POWER DRIVER & PASS SEATS
AG9 - 6-WAY POWER SEAT
AJ1 - DEEP TINTED GLASS
AJ3 - DRIVER'S SIDE AIRBAG (SIR)
AK5 - DRIVER & PASSENGER SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM
AM7 - FOLDING REAR SEAT
AN3 - FRONT BUCKETS WITH POWER ADJ.
A07 - BODY GLASS - 6 WINDOWS
A08 - RH SIDE BODY GLASS-2 WINDOW **7 - SWING OUT LH SIDE BODY GLASS **8 - SWING OUT REAR DOOR GLASS **9 - SWING OUT SIDE DR GLASS
APD - BELT PROVISIONS-BENCH SEATS
AR7 - FRONT BUCKET SEAT-STANDARD
AR9 - BUCKET SEATS WITH LEATHER TRIMMED SEATING SURFACES
AS3 - CENTER AND REAR SEATS
AT5 - CENTER SEAT
AU0 - KEYLESS REMOTE DOOR LOCK AND TRUNK OPENER
AU3 - POWER DOOR LOCK SYSTEM
AU6 - REMOTE TAILGATE RELEASE
AXP - MPV VIN IDENT POSITION
A20 - SWING OUT QUARTER WINDOWS
A28 - SLIDING REAR WINDOW
A31 - POWER WINDOWS
A52 - FRONT BENCH SEAT
A95 - 6-WAY POWER BUCKET SEATS
BAG - EXPORT PARTS PACKAGING
BGR - BOWLING GREEN PLANT
BVE - SIDE RUNNINGBOARD STEPS
B3J - Fleet Incintive; Kleinfelder Group
B3P - BAILMENT COMMERCIAL ORDERS
B30 - WHEEL HOUSING & FLOOR CARPETING
B32 - FRONT COLOR-KEYED FLOOR MATS
B33 - REAR COLOR KEYED FLOOR MATS
B35 - Covering Rear; FLOOR MATS CARPETED Insert
B37 - COLOR-KEYED FLOOR MATS FOR FRONT AND CENTER SEAT
B38 - FULL FRT & REAR FLR COVERING
B39 - COLOR KEYED FLOOR MATS/ CARPETED
B58 - COLOR-KEYED FLOOR MATS, CARPETED
B71 - WHEEL OPENING FLARES CMD - ASSEMBLY PLANT - FLINT, MI
B84 - BODY SIDE MOLDINGS
B85 - BRIGHT BODY SIDE MOLDINGS
B96 - WHEEL OPENING MOLDINGS
CJ2 - AIR CONDITIONING-ELECTRONIC DUAL ZONE
CJ3 - AIR COND., DUAL ZONE MANUAL
CMD - ASSEMBLY PLANT-FLINT, MI
C25 - REAR WINDOW WASHER & WIPER
C3F - GVW RATING - 7,700 LBS
C36 - REAR HEATER
C49 - ELECTRIC REAR WINDOW DEFOGGER
C5B - 15,000 LB GVW RATING
C5I - 8,050 LB GVW RATING
C5S - 6,600 LB GVW RATING
C5U - 6,800 LB GVW RATING
C5Z - 7,200 LB GVW RATING
C6P - 8,600 LB GVW RATING
C6W - 9,200 LB GVW RATING
C60 - AIR CONDITIONING WITH AIR FILTRATION SYSTEM
C69 - AIR CONDITIONING-FRONT & REAR
C7A - 10,000 LB GVW RATING
C7I
C7W - GVW RATING - 11,400 LBS
DD0 - ELECTROCHROMIC MIRRORS: ISRV & LH OSRV
DD7 - ELECTROCHROMIC ISRV MIRROR/COMP
DD8 - OSRV
DE2 - EXT FOLDING B-E-L MIRRORS
DF5 - INT R/V MIRROR, LIGHT SENSITIVE W/OUTSIDE TEMP & COMPASS
DH2 - LIGHTED LH & RH VISOR MIRRORS
DK6 - OVERHEAD CONSOLE
DK7 - INTERIOR CUSTOM ROOF CONSOLE
DL5 - ROADSIDE SERVICE INFORMATION DECAL
DL8 - DUAL PWR HEATED OSRV MIRRORS
DPF - OSRV RETRACTABLE CAMPER STYLE POWER MIRRORS W/TURN SIGNAL AND HEAT
DR2 - MIRROR O/S ELECTRIC, HEATED DRIVER SIDE ELECTROCHROMIC WITH DUAL GROUND ILLUMINATION
DT4 - ASHTRAY MUFFIN
D07 - CUSTOM FRONT FLOOR CONSOLE
D44 - EXTERIOR BELOW-EYE-LINE MIRRORS - PAINTED FE9
D48 - ELECTRIC EXTERIOR MIRRORS
D55 - CONSOLE
EF1 - DELETE REAR BUMPER
EXP - EXPORT ORDER
EVA - EVAP EMISSION REQUIREMENT
E2C - ORDER TO DELIVERY - EXPEDITE
E23 - 9,500 LB GVW RATING
E24 - DOOR SIDE CARGO, HINGED
E55 - BODY STYLE TAILGATE
E63 - FLEETSIDE BODY
FE4 - RIDE & HANDLING SUSPENSION SYSTEM
FE9 - FEDERAL/NY/MA/ME/VT EMISSIONS
FF6 - TORSION BAR SPRING ADJUSTMENT
FF7 - TORSION BAR SPRING ADJUSTMENT
FF8
FF9
FK2 - TORSION BAR SPRING ADJUSTMENT
FK3 - TORSION BAR SPRING ADJUSTMENT
FLT - FLEET PROCESSING
FT2 - ARM TORS BAR SPRING ADJ
FT3 - ARM TORS BAR SPRING ADJ
F44 - HEAVY DUTY CHASSIS EQUIPMENT
F60 - HEAVY DUTY FRONT SPRINGS
GK9 - REAR AXLE - 4.63 RATIO
GMC - ASSEMBLY PLANT-GM TRUCK & COACH
GT4 - REAR AXLE - 3.73 RATIO
GT5 - REAR AXLE - 4.10 RATIO
GU6 - REAR AXLE - 3.42 RATIO
G65 - LEVEL CONTROL MAN,SELF AD
 
Joined
Oct 26, 2008
Messages
1,272
Location
Northern, NY
With the temp gauge now working found out the engine is running cold. I drained the cooling system ( straight water!) and pulled the thermostat neck to find it had no thermostat at all! The neck had silicone sealer as a gasket! Figured out how that came to be, there some pitting on the sealing surface and it probably leaked. Took a triangle file to it and trued the sealing surface up, then put in a 195 t’stat. Filled it with Prestone all vehicle antifreeze and a new radiator cap. She makes hot water now.

The Suburban I just got from AZ did not have any heat either. I found the thermostat stuck open. I am hopeful it was not like that for the last 10 years or whatever - seems like it could cause some varnish/sludge issues.
 
Joined
Apr 9, 2008
Messages
15,787
Location
Central NY
I still don't understand the unconditional love for the GMT400 and I am a GM guy.
View attachment 78013


It was the first truck with a car-like ride and interior. The Fords of that era were still based on a 1981 truck, the Dodge truck went all the back to the early 70s. These trucks were EVERYWHERE where I grew up and they are what started the pickup as a car replacement trend that we have now.
 

AZjeff

$50 Site Donor 2022
Joined
Jan 14, 2011
Messages
6,810
Location
in Az where the Deer and Antelope play
I’m in Bisbee now AZjeff. I love it here!
We were just in Sierra Vista 2 weeks ago visiting friends, didn't make it to Bisbee. We've been told it's a lot like Jerome, all touristy and crowded so didn't drive over. Interesting country down that way.

Your truck could habla Espanol being where you are but I still think it looks too good. Braver than me buying a truck with a quarter million on the clock.
 

wtd

Joined
Jun 25, 2002
Messages
3,200
Location
southwest Mo.
Nice score. That is my favorite body style of the newer generations of Chevy trucks. I still own two of them. Once since new.
 
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