Specs help

[canadianchevy33]

Ok guys I bought a 1989 k3500 dually with a 454 and a 4 speed Id like to know where i could de code the options and find out gear ratios of the tranny and power ratings for the year and all that fun stuff. Also is this a roller or non roller block? Im not sure when the Big blocks were changed to rollers. Thanks

[C/K Man]

Hopefully, the RPO sticker is still in the glove box. That will tell you the real axle gear ratio. The transmission you should have is the old Muncie 4 speed with compound low. 4th. is direct. The 1989 TBI 454 was rated at 230 h.p. and 385 ft. lbs., and is a non-roller lifter Mark IV. It is probably a 4 bolt main bearing block. Roller lifters were not used on big blocks until the 1996 'Vortec 7400' Mark VI.

[canadianchevy33]

Thanks man Theres a few stickers inside the glovebox ill take a picture of them and show you guys.

 

 

Thats all I have in their and something about camper loading and my warranty book and maintenance. Is there no tag or anything stamped on the rear end?

[C/K Man]

O.K., L19 is 7.4L V-8 (454), M20 is 4 speed manual transmission, 117 mm., GT5 is 3.73 rear axle ratio. The gear ratios for that transmission are as follows: 1st., 6.55 to 1, 2nd., 3.58 to 1, 3rd., 1.70 to 1, and 4th. is direct (1 to1). Reverse is 6.09 to 1. The case is cast iron. Hope that helps!

[Colorado Kid]

Here's all the codes I could read, and the translation:

AE7 = Split Bench Seat

AK9 = Seat Belts - Shoulder belts + center lap belt

AM7 = Folding rear seat

AU3 = Power door locks

A20 = Power Quarter Vent Windows

A31 = Power Windows

B32 = Floor Mats, Front

B33 = Floor Mats, Rear

CD4 = Intermitant Wipers

C60 = Air Conditioning, Manual Control

C7A = 10,000# GVWR

C95 = Dome Light and Dual Reading Lights

DF2 = Folding Stainless Steel Wide Load Mirrors

E63 = Fleetside Box

FF4 and FF5 = Torsion Bar Springs

F59 = Front Stabilizer Bar

GT5 = 4.10 Gearing (not 3.73 . . .that would be GT4)

J55 = Heavy Duty Brakes

KC4 = Engine Oil Cooler

K05 = Engine Block Heater

K34 = Cruise Control

K60 = 100 Amp Alternator

L19 = Gas 8 Cylinder 7.4L TBI Engine (454)

MM4 = 4 Speed Manual Transmission Provisions

M20 = 4 Speed Manual Transmission, 6.55:1 Low

NA5 = Federal Emissions

NJ8 = Dual 50 Gallon Fuel Tanks (I think this is a re-used code, my list is from '02)

NK3 = Simulated Leather Steering Wheel

NZZ = Skid Plate Package

N33 = Tilt Wheel

OSG = Built at Oshawa, Ontario, Canada

P06 = Hub Caps

P18 = Spare Tire with Hoist

R05 = Dual Rear Wheels

R7G = Sales Control #

R7K = Sales Control #

SLM = Stock (not Sold) Order

TP2 = Auxiliary Battery

TR9 = Lamp Group

UF2 = Cargo Light

UM6 = AM/FM/Cassette

UY1 = Radio Wiring Provisions

U01 = Roof Marker Lights

U37 = Cigarette Lighter

U66 = Custom Speaker System

U73 = Radio Antenna

VB3 = Rear Chrome Step Bumper

VG3 = Front Bumper Rub Strip

VK3 = Front License Plate Mounting Package

V22 = Chrome Grill

V73 = Vehicle Origin Statement

V76 = Tow Hook

XDL = ? (This code doesn't exist in my list)

X05 = ? (This code doesn't exist in my list)

YDL = ? (This code doesn't exist in my list)

The above 3 codes are probably front, rear and spare tires.

YD3 = Base Axle

YD6 = Base Rear Springs

YE9 = Trim Level 3 (Scotsdale? I'm just guessing)

ZDL = ? (This code doesn't exist in my list)

ZG2 = Sales Control #

ZV2 = Statement of Origin, Nominal Ton Rating

Z31 = Advance Price Sheet Identification

Z49 = Canadian Export Base Equipment Modification

Z53 = Intrument Cluster, Oil Pressure, Coolant Temp, Volts

Z81 = Camper Provisions

7GK = Computer Selected Suspension Component, Right Front

7BD = Computer Selected Suspension Component, Right Front

That's all I got.

[canadianchevy33]

Wow thanks guys dual 50 gallon tanks eh? Theres only one tank under their and it runs on propane anyway.

[C/K Man]

NJ8 was 34 gal. tank in 1988. Sorry about the GT4 GT5 screw-up. I have an old 1988 RPO list in a shop manual.