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Need Help with a Rusted Out Crossmember Sub-Assemly for my 06'

190 Views 3 Replies 2 Participants Last post by  jackwong817
My front cross-member subframe/engine cradle (pictured below) is RUSTED to shit. It needs to be replaced NOW before the car falls apart. :p

I'm planning on purchasing a refurbished subframe on my own, but I'm not sure about the bolts and any other parts I'll need to do the swap.

And while I'm in there, should I be considering swapping out other parts during the job?

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Hard to tell without seeing the condition of your frame. Like any problems with vehicles need to assess what caused the problem... was it near moist ocean area or snow area where they might have used salt clearing the road? Salt will eat metal and if your rust is caused by that then can have other areas to be concern. If nuts and bolts are badly rusted you need to buy Grade 8 bolts and nuts. If the rust isn't too bad, just clean with break cleaner and coat with oil. Be sure to check other areas under the car for rust areas. Sand rust off and with under coating paint, paint a couple of coating over.
Seriously no way of knowing till you start taking it apart. Again not being able to see the condition, I would use six point sockets rather than 12pt sockets. You rather have the bolt snap than an outer stripped nut or head. Then its either vise grips if your lucky, but more likely hack saw. Also get a can of rust penatrating oil, some people tell me Blaster is very good, better than liquid wrench or WD40. Most Auto parts stores carry grade 8 bolts, nuts, and washers but check on sizes and know they are metric sizes. Check the rubber boots of cv joints and make sure no cracks. better to replace now that you're under, and put new grease. If you need to take off exhaust pipe, definitely spray blaster on the thread and nuts. Take care if you need to detatch O2 sensor wiring and never clean your O2 sensor with anything but clean air.
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