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Pelican Technical Article:

Changing Your Dog Bone

Steve Vernon

Time:

1 hr

Tab:

$20

Talent:

**

Tools:

21mm, 16mm socket, cleaner and rags

Applicable Models:

VW GTI (2006-09)

Parts Required:

New dog bone or bushings, new mounting bolts

Hot Tip:

Clean the bolts before you try and remove them

Performance Gain:

Eliminate wheel hop

Complementary Modification:

New engine mounts

The rear engine mount or what is usually referred to as the dog bone mount. These mounts help absorb the torque produced from the transversely mounted engine. The stock bushings in the mount can allow a little wheel hop when trying to get the power to the ground especially if you have modified the car. There are many options for after market insert that will help stiffen up the bushing and decrease wheel hop. Be warned that by doing this you will also be transferring more vibrations to the cabin. The dog bone mount was redesigned for the Mark V and now is pressed into the sub frame plate.

Note: The mounting hardware or bolts are stretch bolts and single use only. Always replace them.

Begin by safely lifting and supporting the car. Please see our article on safely lifting and supporting your vehicle

Figure 1

The dog bone mount (red arrow) attaches the transmission (yellow arrow) to the sub frame (green arrow)

Use a 16mm socket and remove the two bolts (red arrows) holding the mount to the transmission.
Figure 2

Use a 16mm socket and remove the two bolts (red arrows) holding the mount to the transmission.

The transmission bolts are different lengths and single use stretch bolts (red arrow).
Figure 3

The transmission bolts are different lengths and single use stretch bolts (red arrow). Always replace them with new.

Use a 21mm socket and remove the single bolt holding the dog bone in the bushing (red arrow).
Figure 4

Use a 21mm socket and remove the single bolt holding the dog bone in the bushing (red arrow).

The bushing bolt is a large fine thread single use bolt and must be replaced (red arrow).
Figure 5

The bushing bolt is a large fine thread single use bolt and must be replaced (red arrow).

You can now slide the dog bone out from the bushing hole (green arrow).
Figure 6

You can now slide the dog bone out from the bushing hole (green arrow). If the bushing in the dog bone is bad (red arrow) you must replace the whole piece.

The bushing (red arrow) is pressed into the sub frame plate (yellow arrow).
Figure 7

The bushing (red arrow) is pressed into the sub frame plate (yellow arrow). You can remove the sub frame plate and press the old bushing out in a press. Be sure to freeze the new bushing before pressing the new one in. Note; if you go this route you will need to have the cars alignment redone. Volkswagen has a special tool not available to the public that allows the bushing to be pressed out with the sub frame plate still in the car eliminating the need for an alignment. Installation is the reverse of removal.

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Comments and Suggestions:
Cdrenth1 Comments: What are the torque specs for replacing the bolts?
July 29, 2016
  Followup from the Pelican Staff: I don’t have that info.


I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 

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Page last updated: Fri 12/9/2016 02:36:54 AM