1995 Silverado 2500 questions

I had a '94 K1500 with the 350 & 4L60E, ECSB 4x4. I LOVED that truck. About 13-14mpg on the highway, good low end power, the throttle body worked great for me. It had 200k on it when I sold it, still running strong. Great truck, you'll love it.

JIMNLIN wrote:
The 8600 GVWR 2500 came with the C6P chassis complete with the corporate 10.5" r&p 14 bolt full floater with the 350 or 454. GM used this unit for years in the 2500 8600 gvwr on up to the 3500 DRW and is one tough unit.

The 2500 also came in a light duty LD 7200 gvwr with the 9.5" 14 bolt semi floater.

Both the Mid 90's Chevy C6P 3/4 tons we had for work trucks had semi-floaters for rear axles. One was a 1995, the other was a 1999. Both were the HD 8600 GVWR C6P 3/4 ton, and had the 350 engine. The ones we had with 454's all had the full floater.

Maybe the full floater was an option with the 5.7?

The 8600 GVWR 2500 came with the C6P chassis complete with the corporate 10.5" r&p 14 bolt full floater with the 350 or 454. GM used this unit for years in the 2500 8600 gvwr on up to the 3500 DRW and is one tough unit.

The 2500 also came in a light duty LD 7200 gvwr with the 9.5" 14 bolt semi floater.

I think most with the 350 were semi-floating unless you jumped up to the 3500 series.
IIRC, the 454's and diesels came with a full-floating axle.

Cobra21 wrote:
I have a 1993 1/2 ton suburban. It's a great truck. I used to pull a travel trailer with it. I got 9.5 mpg pulling the trailer, and 16 mpg
not pulling. I now also have a 1993 motor home with the same 350. I get about 10.5 with it. I love this engine. It's a throttle body with
only 2 fuel injectors, cheaper to repair which I haven't had to do yet.

Brian

Thank you for the feedback everyone.

I too like the idea of the TBI vs the Vortec.

I have heard that the rear ends on these 2500's are semi-float, anyway to know if thats true or not?

Thanks!

Jeremiah

I have a 1993 1/2 ton suburban. It's a great truck. I used to pull a travel trailer with it. I got 9.5 mpg pulling the trailer, and 16 mpg
not pulling. I now also have a 1993 motor home with the same 350. I get about 10.5 with it. I love this engine. It's a throttle body with
only 2 fuel injectors, cheaper to repair which I haven't had to do yet.

Brian

I had a '90 2500 Chevy with the 350 TBI engine and 4L80 tranny 4.10 gears. That particular model 350 in the C6P chassis made its peak torque at 2400 rpm. Hp/torque was 210/300 . I think the later model TBI engine had a bit more power. The truck averaged 9-10 mpg pulling a 6700 lb 5th wheel trailer and a 3400 lb bass boat behind the trailer. This was in the 55 mph max speed limit era. It averaged 17-17.5 mpg running with a empty truck on long trips. Never had a city for that kind of millage.


My wife has a '06 1500 5.3 chevy crew cab Z71 package 3.73 4L60E tranny 295 hp and averages around 17-18 on long trips running empty. I use it pulling my blue tractor on a 10k car hauler with a 7500 to 9500 lbs gross depending on how much equipment I take for a job. It averages a steady 9-10 on 150 mile trips to a job.

The old 350 has more grunt in the 2500-2800 rpm range for getting down the road and maintaining speed. Over 3200 rpm and its simply making noise.

The wifes '06 1500 5.3 needs lots of rpms to keep pace with the old 350. Sure once the 5.3 gets in the 3500-4000 rpm range then it will hide from the old 350 TBI engine but lordy does it get tiring hearing the noise from all that rpm.

MPG depends on the rear end ratio. The 3/4 should have a 3.73 or the optional 4.10 better for towing.

The 1/2's usually had a 3.42 or 3.08 for mileage.

You can look on the inside of the glove box door and there will be a list of the build codes for that truck.

The following info was found at this site courtesy of Turbine Doc
http://www.dieselplace.com/forum/63-gm-diesel-engines/21-6-5l-diesel-engine/9676-rpo-codes.html



Also FYI in addition you can have your VIN checked here http://www.dieselplace.com/forum/71-official-gm-information/72-vin-check-requests/ to give you a little more info on your ride in addition to RPO coded info below

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

1995 GMC Sierra 2500 2WD 8 cyl, 5.7 L, Manual 5-spd, Regular Gasoline
GMC Sierra 2500 2WD 13

City

14

Combined
17

1995 GMC Sierra 1500 2WD 8 cyl, 5.7 L, Automatic 4-spd, Regular Gasoline
Compare1995 GMC Sierra 1500 2WD 13

City

14

Combined
17

Highway