IAG IAG-DRV-1000 User manual

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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IAG Performance Transfer Gears Installation
Part# IAG-DRV-1000, IAG-DRV-1010
Tools Required: 12mm Wrench, 3/8” Torque Wrench,
14mm Wrench, 3/8” ratchet, 12mm Socket, 14mm
Socket, 17mm Socket, 3/8” x 8” extension, Roll Pin
Punches, Press, Bearing Puller, Snap Ring Pliers, Needle
Nose Pliers, U-Joint Press, Hammer
Thank you for choosing IAG Performance. Please follow
the instructions below for an easy installation.
1. Start by draining the transmission fluid.
2. Next remove the (4) 12mm nuts and bolts holding the
driveshaft to the rear diff using a 12mm wrench. Then
remove the driveshaft from the vehicle.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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3. Next remove the down pipe from the vehicle. Then
remove the transmission cross member.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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4. Remove the down pipe mounting bracket from the
transmission.
5. Remove the shift linkage, shift rod support and mount
from transmission. Then remove the shifter knuckle from
the transmission using a roll pin punch. Mark the top of
knuckle to insure proper re-installation.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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6. Remove rear transmission housing bolts. *Bolts are
different lengths so mark where they go then remove
housing, gears and diff. Make sure to unplug the electrical
connector on diff before removing! There are 4 clam shell
bearing that will come out with the diff.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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7. Remove the bearings from the output shaft using a
press or bearing puller.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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8. Press the bearings onto the new output shaft. You can
use the old bearing races to support the bearings when
pressing them onto shaft. Spin the bearing while pressing
it onto shaft making sure the bearing doesn’t bind or get
damaged during install.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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9. Remove the drive gear from the housing.
10. Install the output shaft into the housing being sure to
lubricate the bearings with gear oil. Then install it onto
transmission with 4 bolts (2 top and 2 bottom) and torque
bolts to 48nm (35.4ft lbs). Make sure the shaft is not loose
and spins smoothly, if it is loose or too tight it will require
shimming.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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11. Remove the snap ring on the drive gear and press off
the bearing. Next press the bearing onto the new drive
gear and re-install the snap ring. There are shims on the
drive gear, these will be re-used so do not lose them!

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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12. Install the drive gear into the housing and torque it to
25nm (18.1ft lbs).
13. Clean the sealer off of the transmission and housing
then clean both using brake cleaner. Next, using wheel
bearing grease install the clam shell bearings onto the
pinion shaft and re-install the diff making sure to plug in
the electrical connector. Apply sealer to the housing then
install it onto the transmission. Make sure to put bolts
back in proper locations or damage could be done to
transmission! Torque the housing bolts to 48nm (35.4ft
lbs). Then re-install shifter linkage and transmission cross
member.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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14. Remove the original yoke from the drive shaft and
install the new supplied yoke onto drive shaft. If done
properly you can re-use your existing U-Joint. The
preferred method is using a clamp style u-joint press.
After the new yoke is installed make sure it freely moves in
all directions. If it is tight you can tap on the yoke to free
up the U-Joint.

IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
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15. Re-install the drive shaft, refill the transmission fluid,
and re-install down pipe bracket and down pipe.