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Posts Tagged ‘differences’

1960-1966 Chevrolet Differences

Thursday, February 11th, 2010

To keep production costs down during the 1960-66 Chevrolet truck series, GM made very few changes on their ½, ¾, and 1 ton. Only the more skilled truck enthusiast can correctly identify each year in this series. Keep this following data close at hand when you evaluate these years.

1960

1960 1966 chevrolet differences 1

1960 1966 chevrolet differences 2

Dual headlights. The sheet metal part of this hood will be used only two years. The Apache name on the side plate carried from the earlier series. The Chevrolet letters are stamped in the bottom of the grill housing.


1961

1960 1966 chevrolet differences 3

1960 1966 chevrolet differences 4

A grill modification places the Chevrolet letters in the center of an insert. Half ton wheels change from having three clips to three nubs in their center to secure a different design hub cap.


1962

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1960 1966 chevrolet differences 6


1963

1960 1966 chevrolet differences 7

1960 1966 chevrolet differences 8

Only year in the series with round headlight rings. The side fender emblem is more vertical in shape. The final year in the series for the classic wraparound windshield. This also will change shape of the doors and result in a completely redesigned dash. This is the big year for major mechanical changes. A new design short stroke 230 six cylinder is standard. The famous 235 six (1954-1962) is history. Torsion bar front suspension (1960-1962) is replaced with the more conventional coil spring front end.


1964

1960 1066 chevrolet differences common 9

1960 1966 chevrolet differences 10

Basically the same truck mechanically and body. GM has a good thing going! The noticeable exterior differences are the chrome side emblems. The flatter windshield is a trade mark of these four years.


1965

1960 1066 chevrolet differences common 9

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1966

1960 1066 chevrolet differences common 9

1960 1966 chevrolet differences 12

Advance Design Speedometers

Thursday, February 11th, 2010

No less than five speedometers were used in Chevrolet trucks during the Advance Design years, 1947-1955. If you want your truck just right, be sure you understand the differences. Restoring one you have on a shelf or purchased at a swap meet may not be proper for your year. The following will provide a description of differences.


1947 speedometer

1947

Red-Orange needle. Lower two tabs 4 3/4″ apart. 80 MPH (A clear needle means the color has faded away.)


1947 speedometer

1948

Red-Orange needle. Lower two tabs 6″ apart. 80 MPH


1947 speedometer

1949-1951

White needle, lower two tabs 6″ apart. 80 MPH


1947 speedometer

1952-1953

White needle, lower two tabs 6″ apart. 90 MPH


1947 speedometer

1954-1955

Totally different from earlier years. Silver needle over black face. Few parts interchange


Then there is the GMC speedometers used during 1947-1955 (Only 1952-1953 are the same.) That is another story!

Advance Design Gauge Cluster

Thursday, February 11th, 2010

The Chevrolet “Advance Design” gauge cluster looks much the same between 1947 and 1953, however a few differences do exist. For the perfectionist, these changes are important.

In 1947-1948 the gauge needles are short (5/8 inches) and painted red. Between 1949-1953 the needles become longer (3/4 inches) and are white to match the change in the new speedometer needle.

The other variable is the temperature gauge. Though not calibrated different, its numbering changes from a maximum of 212 degrees to 220 degrees in 1953. With anti freeze and now a pressure radiator cap, fluid could reach a higher boiling point than 212 degrees.

1951-1953 Gauge Cluster Differences

Thursday, February 11th, 2010

1951 1953 guage cluster 1

On first glance, most people assume that both Chevy and GMC gauge clusters are fully interchangeable and are the same except for perhaps the minor difference with Chevy oil gauges topping out at 30 psi versus GMC gauges maxing out at 60 psi. But that’s quite a bit short of what the actual differences were originally! There are actually no less than five distinct differences in the same year gauge clusters when taken from same size trucks. Below you will see two examples of late 1951 to 1953 gauge clusters; one on the left from a Chevy truck, and the one on the right from a GMC truck. Before you start jumping up and down about the tan background brown letter gauges in 1951, realize that the gauge clusters changed in late 1951 and then stayed brown background cream letters up through 1953. The first and most obvious difference is the oil gauge, but upon closer inspection you’ll find twelve distinct differences between them; six on each gauge cluster.

  1. GMC oil gauge reads 60 psi while the Chevy oil gauge tops out at 30 psi
  2. GMC used an Ampere gauge showing 50- | +50 where Chevy used a C | D Charge/Discharge style gauge
  3. The label under the electrical gauge on Chevy clusters says simply “BATTERY” while on the GMC it says “AMPERES”
  4. GMC temperature gauges maxed out at 220F where Chevy temperature gauges stop at 212F until 1953. In 1953 Chevrolet matched GMC with 220F
  5. The GMC fuel gauge was used for both big and small trucks, so it reads “FUEL” where the Chevy gauge reads “GASOLINE” since there were no Chevy diesel trucks at that time
  6. The Chevy gauges all have longer 2/3rds way needles than the GMC gauges with half-way needles

So the next time you’re shopping for gauges, these subtle differences may help you to better understand what you need whether you are driving a Chevy or a GMC.

Rob English

www.oldGMCtrucks.com

1936 Side Mount Spare Differences

Thursday, February 11th, 2010

The 1934-36 half ton Chevrolet truck body style always placed their 17′ spare in the right fender. Even the Chevrolet car normally used the right side when only one side mount was added.

In mid 1936, GMC entered the ½ ton market for the first time. This light truck shared most all sheet metal and chassis components with Chevrolet except for the engine, hub caps, grille and tailgate lettering.

One of the more visual differences between the 1936 Chevrolet and the new GMC 1/2 ton is the location of the side mount spare. The GMC is on the left, not the right as with Chevrolet. This was done with little expense as the mounting brackets will fit the right or left side.

Why did GMC place their spare on the opposite side? The answer 70 years later is not known. We only assume it kept the two marques more individual with no extra expense.

1936 side 1

1936 Chevrolet (above)

1936 side 2

1936 GMC

1936 side 3

1936 GMC

1936 side 4

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