How to install transmission crossmember
![how to install transmission crossmember how to install transmission crossmember](https://i.ytimg.com/vi/Utot6w0NeUI/maxresdefault.jpg)
You can determine if the transmission mount is at fault by wiggling underneath the car and moving the transmission tailshaft back and forth and up and down. In extreme cases, you might also feel a strong driveline vibration. Diagnosing a Failed or Worn Transmission MountĪ clunking noise when you start the engine is normally a sign that either the motor mount or the transmission mount isn't properly securing the engine or transmission. First we'll look at diagnosing the transmission mount, and then we'll then go through the steps to change a worn-out transmission mount on a rear-wheel-drive vehicle. If left unattended, this excessive movement can cause motor mounts and u-joints to fail. The rubber allows a little “give" in the mounting, but, over time, the rubber will wear out and allow too much movement, which causes the clunking noise you hear.Įnergy Suspension Transmission Mount | Advance Auto Parts The transmission mount is a rubber and steel part that secures the rear of the transmission-called the tailshaft-to the crossmember. There's plenty of room for a bigger pipe.Are you hearing or feeling a clunking noise when you start or shut down your vehicle or put it in gear? If so, you may have a transmission mount that has gone bad. Since the framerail has a slight drop on the inside, you have to use some shims that come with the kit between the extension and framerail where the bolts pass through.
![how to install transmission crossmember how to install transmission crossmember](https://i.ytimg.com/vi/KULpJOrt8C8/maxresdefault.jpg)
This was the hardest part, but drilling two holes isn't too difficult! Here is where I used the supplied template to drill the two holes into the frame to securely mount the rear part of the extension. Note that it is a 3.5" diameter shaft and it is TIGHT around the driveshaft safety loop.Ĭlose-up of the driveshaft, safety loop, and crossmember. Next step is to re-install the driveshaft. Insert a transmission mount bolt from the bottom and lower the floor jack until the transmission is seated on top of the rubber shock absorber of the mount.
![how to install transmission crossmember how to install transmission crossmember](https://cfc7329ad537523a5de1-b21544d490ba797ec9de9d17e947de3d.ssl.cf1.rackcdn.com/mustang-transmission-cross-member-hardware-kit-82-93_eb91f806.jpg)
I had to re-route it to where it rests on top of the crossmember on each side of the transmission mount area. Note that my shifter cable is hanging down. Here's the rear view of the crossmember after it has been bolted into place. I removed the floor jack, and the transmission is resting on the crossmember. OK, everything is lined up and tightened down. You have a large hole in the bottom to install the nut with a socket. All bolts are put into place and finger tightened to make sure everything lines up properly before final tightening. Here's where the frame extension on the driver's side comes into play. Everything lined up without much trouble at all. Next, you slide the crossmember into place. No biggie for me since I had already removed mine. Note: you may have to move or slightly relocate (bend) the fuel vapor return line. Thank you for purchasing this PERRIN product for your car Installation of this product should only be performed by persons experienced with installation of. Later, you drill two small 1/2" holes in the framerail near the rear of the extension to securely mount it to the frame. It simply slides into the frame rail, and has bolt holes to bolt it into place in the existing factory holes. The frame extension is a really slick way to cure the pre-84 mounting problem. Here is a shot of the frame section that needs to be extended in order to install the G Force crossmember. The later models were available with the 2004R transmission, so they had longer frame mounts for the crossmember. The pre-84 (and in some cases '85) G-bodies have a shorter frame extension for crossmember mounting. It comes with the crossmember, frame extension, fasteners, template and instructions. Here's what you get with the TH400 installation into a pre-84 G-body. It had to be moved to the rear side of the crossmember to mount the TH400. Notice the dual exhaust modification and the transmission mounting pad I fabricated out of flat steel.
![how to install transmission crossmember how to install transmission crossmember](https://www.gmperformancemotor.com/mm5/graphics/00000001/hooker_bh_12614hkr.jpg)
It worked well for the few years I had it in the Malibu. It's a hacked-up job I done to fit the TH400 into the Malibu.