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Old 10-20-2014, 02:10 PM   #1
Pender1
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1978 Specifics

Hello all, I'm looking at two 1978 K10 Chevrolets and trying to decide if I should buy one of them. Oddly enough they are both asking $2k and are equal drives from my house. I don't know a ton of specifics about that generation of trucks and was hoping I could get some info from the collective knowledge here. I'm just wanting one for a project and then as a weekend/play-around truck (no extreme mudding or rock crawling or anything).

Since they are both '78s, what features made that year different than any other? Was it a good year overall?

Is that a fair price for this year?

One is a 3-speed and the other is a 4-speed (both manual). Is one significantly worse/better than the other? I don't know the gearing on either sadly.
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Old 10-20-2014, 03:21 PM   #2
thefraze_1020
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Re: 1978 Specifics

Like most GM trucks from the 70's, 1978's are prone to rust. Bottoms of fenders, rocker panels, cab corners, etc. Be on the lookout for that.

Exterior-wise, they are pretty much identical to 1977's. Interior changes were made in 1978, however. The wood paneling inside was gone, replaced with brushed metal trim (simulated of course), and a new instrument bezel was installed.

On the other hand, 1978 was the last year of the old style gas cap, as it was changed to a fuel door in 79 (if the filler is stock on those trucks, that is).

Take a look at this link, it should give you a lot of information on '78's.
http://www.oldcarbrochures.com/stati.../dirindex.html
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Old 10-20-2014, 03:23 PM   #3
thefraze_1020
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Re: 1978 Specifics

...oh and I forgot, 1978 was the first year of the newer style steering wheel, two types, depending on the trim level.
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Old 10-20-2014, 03:44 PM   #4
Keith Seymore
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Re: 1978 Specifics

Pretty much the same from '73 - 87 ('73 to '80 are even more similar).

Quote:
Originally Posted by Pender1 View Post
One is a 3-speed and the other is a 4-speed (both manual). Is one significantly worse/better than the other? I don't know the gearing on either sadly.
The 3 speed (on the tree, I presume) is the fully synchronized Saginaw passenger car type trans and is probably a better trans for puttering around town.

The 4 speed (on the floor, I presume) would be the SM465, which has the unsynchronized 6:1 creeper first gear is is better for pulling stumps or launching heavy trailers.

Here's the generic info packet for a '78, courtesy of the GM Heritage Center archive.

https://www.gmheritagecenter.com/doc...olet-Truck.pdf

K
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Last edited by Keith Seymore; 10-20-2014 at 03:56 PM.
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Old 10-21-2014, 10:17 AM   #5
motornut
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Re: 1978 Specifics

some 78 info I believe correct
78 finished the orange block 350s later ones blue
78 finished the glass fuses.
first year of changes that carry threw later years
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