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'87 Chevy C10 Tranny Problem


zeitgeist57

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My truck is running, but it's stuck in gear (Reverse). The transmission is also totally covered in a thick, peanut-butter-consistency stuff that MIGHT have been a leak 7 years ago (last time it ran).

 

I am listing the GM codes below, so that SOMEONE might be able to tell me what type of tranny it has (or anything else about the truck I might need to know when getting parts). Can someone help me learn more about this truck?

 

D44 - Painted Below Eyeline Mirrors

F51 - Heavy Duty Shock Absorbers

J50 - Power Brakes

LB1 - VORTEC 4.3 Liter V6 Gas (155HP/230FT.LB)

N41 - Power Steering

XFL - P235/75R15 ALS S/B/ Radial Tires

ZFL - P235/75R15 ALS S/B/ Radial Tires

VSS1 - Saddle Tan Vinyl Bench

E63 - Fleetside Pickup Box

GU2 - Rear Axle-2.73 Ratio

K81 - Cold Climate Package (Including Special Insulation, 66 Amp Alternator, Special Heater & Defroster, Engine Block Heater, HD Battery.)

MM3 - Three Speed Manual

U37 - Cigarette Lighter

YES - P235/75R15 TBLS 00 (Wha??????)

Z53 - Gauge Package (Including Voltmeter, Engine Coolant Temp, 66 Amp Alternator)

4001AA - Special Paint

 

Any help from Chevy/GMC truck guys would be helpful! Thanks!

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Here's a diagram I found that will help you ID your trans.

 

I think in 1987 they put 700R4's, (3sp. w/OD), and TH400's, (3sp no OD), in the C10's.

 

Crawl under there and clean the linkages up like mentioned earlier.

http://www.nastyz28.com/pictures/transpan.gif

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Someone told me that it might be the linkages...I'll disconnect the steering linkages from the tranny rods and see if the tranny shifts that way...actually, with that in mind doesn't HURST make an old-school floor-mount shifter conversion for cheap?

 

EDIT: Sorry...just to confirm YES, it's a manual with "3 on the tree" (column shifter)

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Guys, I disconnected the linkage and found the TRANSMISSION was stuck in gear. After grabbing the link to the tranny and wiggling it a bit, sure enough the transmission broke loose and it started engaging gears smile.gif

 

Please note the new post on my ongoing problems with my truck... ;)

 

...AND THANKS FOR YOUR HELP

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