Measuring Drive Shaft and
U-Joints
Contents:
Notes:
- The vehicle must be measured as it is to
operate. Jacking up the vehicle will change your dimensions.
- If your vehicle has a bolt-on transmission yoke,
measure between U-joint centerlines.
- If there is a flange mount on either or both
ends, measure to the face(s).
- When you install U-bolts do not over-tighten
them. "D" dimensions 1-1/16" and 1-1/8": 14 to 17 ft. lb.; "D" dimension
1-3/16": 10-25 ft. lb.; "D" dimension 1-3/8": 32-37 ft. lb.
- If you have specified grease able U-joints,
grease them after installation of drive shaft.
Measuring Yokes for U-Joint
Size
- Measure for U-joint size at third member
yoke.
- These dimensions must be accurate. If you
don't get them, check for wear at "E" or "A."
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Measuring based on the
diagram at left, you should obtain one of the following pairs of
measurements for "E" and "D." Make note of these measurements for use in
the order form.
E = 3-7/32" D = 1-1/16" E = 3-5/8" D = 1-1/16" E = 3-5/8" D = 1-1/8" E = 3-5/8" D = 1-3/16" E = 4-3/16" D = 1-3/16" E = 4-3/16" D = 1-3/8" E = 4-31/32" D =
1-3/8" |
 |
Depending upon your make of
vehicle, you may need to take the following measurements for "A." Make
note of these measurements for use in the order form.
SOME CHRYSLER
CORP.
A = 2-1/8" A = 2-5/8" SOME GENERAL MOTORS
A = 2-9/16" |
Measuring For One-Piece
Shaft*
*Maximum allowable length is variable. A two-piece
shaft system may be necessary.
- Measure from the tip of the transmission output
shaft to the centerline of U-joint at the third member. This will be the flat
surface where the U-bolt hole is drilled. Take note of this measurement for
use on the form as transmission output shaft to U-joint
centerline.
- Measure the output shaft protrusion and
take note of this measurement.
- In addition to these measurements, you will need
to identify the transmission make and model and the differential
make and model.
Measuring For Two-Piece
System
- Measure from the tip of the transmission output
shaft to the centerline of U-joint at the third member. This will be the flat
surface where the U-bolt hole is drilled. Take note of this measurement for
use on the form as transmission output shaft to U-joint
centerline.
- Measure the output shaft protrusion and
take note of this measurement.
- In addition to these measurements, you will need
to identify the transmission make and model and the differential
make and model.
