Engine Serial Number; Transmission Identification; Fastener Classification - Dodge D250 1990 Service Manual

CHRYSLER MOTORS
DODGE Turbo Diesel
introduction
Page 15
Engine Serial Number
Parts Replacement Information On 5.9 Liter diesei engines,
the engine serial number is located on the left front corner of
the engine. The engine serial number is stamped into the data
plate located on the gear housing.
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Bljtoi I C.I.OJ L.- Sefits CM.
CM. I.D J Jfjf B
0804 "i""" 3909522
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Transmission Identification
Operation requirements are, in some instances, different for
each vehicle and engine combination and some internal parts
will be different. Therefore, when replacing parts, refer to the
number stamped on left side of the transmission oil pan flange.
See Group 21 of this manual for additionai information. For
manual transmission models, an identification number is
permanently stamped into the right side of the transmission
case or a metal tag located on the upper right side of the
transmission.
Fastener Classification
Metric Thread and Grade Identification Metric and inch
thread notations differ slightly.
Common metric fastener strength property classes are 8.8 and
12.9 with the class identification embossed on the head of each
bolt. Inch strength classes range from grade 5 to 8 with line
identification embossed on each bolt head as shown. Markings
correspond to two lines less than the actual grade (i.e. grade 8
bolt will exhibit 6 embossed lines on the bolt head). Some
metric nuts will be marked with single digit strength
identification numbers on the nut face.
[Inch] Bolts—Identification marks correspond
to bolt strength—increasing numbers represent
increasing strength.
Metric Bolts—Identification class numbers cor-
respond to bolt strength—increasing numbers
represent increasing strength.