A couple weeks ago I replaced the driver's side transmission mount on our 2008 Mazda5. Back in September, I replaced both the passenger motor mount, which had ruptured, and the rear motor mount. I went to Rockauto and bought the DEA #A4414 mount for the transmission. The car currently has about 80K miles.
Before
Step 1. Remove air intake, battery cover, battery, and battery box. There will be some electrical connectors and a vacuum line that need disconnection.
Step 2. Under the battery box, there is a bracket covering the trans mount. Remove it and you'll see the entire mount.
Step 3. Put a jack under the transmission to support it, then remove 17mm bolt through the center of the mount. Remove old mount and put in the new one. Torque the 17mm bolt to 75 ft/lb then remove the jack below.
Step 4. Replace the bracket, battery box, air intake and re-connect all lines and electrical connections.
Here's what the old transmission mount looked like once I took it out. From some others that I've seen I thought my old mount looked pretty good, but then I noticed the thin crack along the left edge. It's a split in the rubber that went the entire width of the mount. It wasn't completely falling apart but it was on its way out.
Before
Step 1. Remove air intake, battery cover, battery, and battery box. There will be some electrical connectors and a vacuum line that need disconnection.
Step 2. Under the battery box, there is a bracket covering the trans mount. Remove it and you'll see the entire mount.
Step 3. Put a jack under the transmission to support it, then remove 17mm bolt through the center of the mount. Remove old mount and put in the new one. Torque the 17mm bolt to 75 ft/lb then remove the jack below.
Step 4. Replace the bracket, battery box, air intake and re-connect all lines and electrical connections.
Here's what the old transmission mount looked like once I took it out. From some others that I've seen I thought my old mount looked pretty good, but then I noticed the thin crack along the left edge. It's a split in the rubber that went the entire width of the mount. It wasn't completely falling apart but it was on its way out.
