User Manual

5.38 5.13 4.88 4.56 4.10 3.73 3.55 3.07
44” 32T 31T 29T 27T
42” 34T 32T 30T 28T
40” 35T 34T 32T 30T 27T
39” 36T 34T 33T 31T 28T
38” 37T 35T 34T 31T 28T 26T
37" 38T 36T 35T 32T 29T 26T
36” 39T 37T 36T 33T 30T 27T
35" 40T 38T 37T 34T 31T 28T 27T
33" 41T 39T 36T 33T 30T 28T
32" 40T 37T 34T 31T 29T
31" 41T 39T 35T 32T 30T 26T
30" 40T 36T 33T 31T 27T
29" 41T 37T 34T 32T 28T
28" 38T 35T 33T 29T
TIRE
DIAMETER
(Fig. A)
AXLE GEAR RATIOS
If you have not changed your tire size or your axles, your stock speedometer drive gear will remain the same.
However, if a new axle ratio and/or tire size is used, see Fig. A & B. These new speedometer drive gears
can be purchased at your local Jeep dealership.
ADVANCE ADAPTERS INC. P/N: 50-7905, 50-7906 & 50-7906B
P.O. Box 247, 4320 Aerotech Center Way New Item: (12/98)
Paso Robles, CA 93447 PAGE 12 OF 12
Telephone: [phone] Fax: [phone] Page Rev. Date: 07-31-07
SPECIAL NOTE: The components packaged in this kit have been assembled and
machined for specific type of conversions. Modifications to any of the components will
void any possible warranty or return privileges. If you do not fully understand modifications
or changes that will be required to complete your conversion, we strongly recommend that
you contact our sales department for more information. This instruction sheet is only
to be used for the assembly of Advance Adapter components. We recommend that a service
manual pertaining to your vehicle be obtained for specific torque values, wiring diagrams
and other related equipment. These manuals are normally available at automotive
dealerships and parts stores.
Part Number TEETH COLOR
(Fig. B)
52067628 28T
52067629 29T
52067630 30T
52067631 31T
52067632 32T BLACK
52067633 33T YELLOW
52067634 34T GREEN
52067635 35T ORANGE
52067636 36T RED
52067637 37T
52067638 38T BLUE
52067639 39T GREEN
52067640 40T ORANGE
52067641 41T RED
52067642 42T WHITE
52067643 43T BLUE
When installing a speedometer gear with either 39, 40, 41 or 42 teeth,
the gear and the housing must be installed separately. These are all
large diameter speedometer gears. By first installing the gear into the
tailhousing you will be able to tilt the gear shaft up allowing you to
position the gear past the Atlas output shaft. Once this gear is in place,
the speedometer housing must be aligned with the speedometer
gear shaft and indexed into the tailhousing. When installing the
speedometer housing, lube the o-ring that contacts the Atlas
tailhousing with a bit of Torco oil. This will prevent the o-ring from being
nicked upon installation or rotation, causing this housing to leak.
CHRYSLER SPEEDOMETER DRIVE
PART NUMBERS