71 SPID Decode Needed

[DreamRyder1963]

I am painting the front of my glovebox and figured this would be a good time to decode the SPID. I know that there are several members on here are great for this info. Sorry for the poor pics.

[Steve Hafner]

. . . .

Here's a close-up picture of it:

. . . .

[Keith Seymore]

Are all the 67-72 guru's on vacation? You gonna make the squarebody guy do this?



Well - off the top of my head, here's what I see:

B93 - Door edge guards
DG4 - Exterior mirrors below eyeline stainless
G50 - HD rear springs
PV6 - Tires H78-15 belted white strip
U63 - AM radio
Z53 - gages (amp, temp, oil, etc)
__5 - Dark Green (exterior color)


A11 - soft ray tint - all windows
G80 - limited slip/locking rear (non-open)
F59 - Front stablilizer bar
F60 - Front spring capacity
P01 - wheel covers
V46? maybe? - chrome front bumper
Z84 -Cheyenne trim level
62I -interior color and trim

[Keith Seymore]

...and here is the link if you would like to see for yourself.

K

http://www.gmheritagecenter.com/docs...olet-Truck.pdf

[SS Tim]

CE141F_ _ 8474 Conventional Cab, 1/2 ton pickup, 1971, Flint assembly plant, _ _8474 unit serial number

127 (Wheelbase)


MODEL= CE10934 (Conventional, V-8, Fleetside, LWB, 307/3-speed/3.73)
1B93AA DOOR EDGE GUARDS
1DG4AA BELOW-EYELINE MIRRO (tripod leg mirrors)
1G50AC HEAVY REAR SPRING (2000lb ea)
1PV6AB H78X15 BELTED WHITE (five highway white walls)
1U63AE AM PUSHBUTTON RADIO (AM radio with push buttons)
1Z53AQ AMMETER,OIL-TEMP GA (gauges no tach)
1505AA DARK GREEN (non-metallic solid paint)


1A11AA TINTED GLASS
1C80AA DOME LAMP SWITCH (door operated dome lamp)
1F59AA FRONT STABILIZER
1G60AN AUXILIARY SPRING (500lb ea leaf helper spring)
1P01AA FULL WHEEL COVERS (full wheel cover option vs a standard hub cap)
1V43AD REAR STEP BUMPER
1Z84HA CUSTOM SPORT TRUCK (Cheyenne trim and emblems)
1621AA SADDLE VINYL CUSTOM (trim color and type callout)

[DreamRyder1963]

That's good to know. It looks like my truck has been changed even more than I had thought. It currently has a 350 and an open 3.08 (according to the gear caluator) coil spring rear.

[SS Tim]

Originally Posted by DreamRyder1963

That's good to know. It looks like my truck has been changed even more than I had thought. It currently has a 350 and an open 3.08 (according to the gear caluator) coil spring rear.

To be clear, your SPID does not list an optional engine transmaission or ratio. So by default a 307 engine, 3-speed trans and 3.73:1 gears are its indicated build.

The engine might be a 307 under a 4 bbl intake. If you are not sure check the casting number, date and engine assembly numbers.

The rear gears could have been changed anywhere along the line even at the dealership. Check you axle codes if you really want to know more.

You truck (as built) had the default coil spring rear suspension. In addition it had the HD coil and the helper leaf spring options that contacted the trailing arms behind the axle.

[DreamRyder1963]

Thanks for the info I found the engine code from the block. It says:
V0825DMB
199403799

It looks like its a later engine.

[SS Tim]

Originally Posted by DreamRyder1963

Thanks for the info I found the engine code from the block. It says:
V0825DMB
199403799

It looks like its a later engine.

WOW, Not what I expected.
Mind you later numbers are not my strong point but I try to have a good database for such an issue.
So...
That 199403799 looks like a VIN code, was it stamped near to the engine assembly code?
If so it appears to be for a '79 Oshawa built vehicle with a 267!
The DMB suffix code comes back as a 79 L-39 267 or an 81 LM-1 350.
Time to check the casting numbers, in fact all the numbers carefully.

[DreamRyder1963]

The VIN code was stamp directly under the engine assembly code. It pulls like a 350 which is what the POs claimed it was. It also has 3998991 heads which according to my book is possibly the original 1971 heads. I am starting to think that this engine was pieced together at some point.