Motor Mounts
Thread Starter
Joined: Dec 2007
Posts: 18
Motor Mounts
Being told that motor mounts need to be replaced on my 67 mustang. Mechanic is telling me this is a $500 job for parts and labor. Has anyone out there had to do this or know how much a job like this should cost. Thanks
3rd Gear Member
Joined: Dec 2007
Posts: 959
From: Bangkok, Thailand
Thats crazy!!! Here is a link to about what I think are the best mounts out there
http://www.ronmorrisperformance.com/
Thats if you get a high end set, you can easily get a cheap set of mounts from Auto Zone or something for about $50.
As for the labor? You can put a jack with a large block of wood, to evenly displace pressure, accross the bottom of you oil pan. Jack up the motor to take pressure off the mounts, un-bolt the mounts and put in the new ones. $500 for this kind of job? No way, I wouldn't do it. If you live in or near Fayetteville, NC I would do it for a case of Orange Juice!
You'll have to look at the mounts too. If you have a fastback with a 289 in then the frame mounts are actually mounts made for a big block with are not compatible with the newer motor mounts. That in itself would probably drive your mechanic a little crazy not being able to find the right motor mounts for your car.
James
http://www.ronmorrisperformance.com/
Thats if you get a high end set, you can easily get a cheap set of mounts from Auto Zone or something for about $50.
As for the labor? You can put a jack with a large block of wood, to evenly displace pressure, accross the bottom of you oil pan. Jack up the motor to take pressure off the mounts, un-bolt the mounts and put in the new ones. $500 for this kind of job? No way, I wouldn't do it. If you live in or near Fayetteville, NC I would do it for a case of Orange Juice!
You'll have to look at the mounts too. If you have a fastback with a 289 in then the frame mounts are actually mounts made for a big block with are not compatible with the newer motor mounts. That in itself would probably drive your mechanic a little crazy not being able to find the right motor mounts for your car.
James
6th Gear Member
Joined: Aug 2007
Posts: 5,896
From: Elk Grove, CA
Assuming you have a 289, it's going to cost more than that if you have someone else do it. Your mechanic likely doesn't know this, and neither will your average (or even above-average) parts person, but it's literally impossible to buy new '67 289 motor mounts. Most parts stores will sell you a mount they claim will fit 66-70 289/302 non-convertibles. Unfortunately, all 67's use different frame brackets and different motor mounts, which are also used on 66-70 convertibles.
The difference is very small, and you can even line a proper 67 mount up with the new replacement and miss it, but they are different. One of the holes in the frame bracket is drilled slightly higher, requiring the mount to sit on the bracket at a different angle in order to bolt up to the block. The manufacturer (standard motor products, iirc) decided in their infinite wisdom to collapse the two different part numbers a while back because someone thought they were exactly the same. It's pretty obvious when you get everything in the car that you can't bolt up both mounts at the same time. You'll get one bolted up, and the other will be severely misaligned. In the case of a small miracle and you manage to force everything together, you'll break one or both mounts within a matter of days.
There are three solutions to this problem.
1) Pick up a set of Ron Morris adjustable motor mounts. They're pricey, but they're very nice, and they're strong enough that you likely won't have to replace them anytime soon.
2) Pick up a set of '68 frame brackets from a Mustang wherehouse (or ebay, if you can find them). This is the route I took. The '68 frame brackets will allow you to use the standard aftermarket replacement "66-70 289/302/351W non-convertible" mounts. Even if you do have to replace the mounts in the future, it's still the same mount. And on the upside, you can sell your old frame brackets on ebay as '67-70 390/428 frame brackets, as they all use the same bracket as yours.
3) Drill your existing frame brackets with a new hole in the proper location. I'm not a fan of this, as the new hole is VERY close to the old hole. In theory it will work fine as long as everything's torqued down real good, but I personally wouldn't want to do it. However, if you want to go this route, I can supply a template to show you where to drill the hole.
The difference is very small, and you can even line a proper 67 mount up with the new replacement and miss it, but they are different. One of the holes in the frame bracket is drilled slightly higher, requiring the mount to sit on the bracket at a different angle in order to bolt up to the block. The manufacturer (standard motor products, iirc) decided in their infinite wisdom to collapse the two different part numbers a while back because someone thought they were exactly the same. It's pretty obvious when you get everything in the car that you can't bolt up both mounts at the same time. You'll get one bolted up, and the other will be severely misaligned. In the case of a small miracle and you manage to force everything together, you'll break one or both mounts within a matter of days.
There are three solutions to this problem.
1) Pick up a set of Ron Morris adjustable motor mounts. They're pricey, but they're very nice, and they're strong enough that you likely won't have to replace them anytime soon.
2) Pick up a set of '68 frame brackets from a Mustang wherehouse (or ebay, if you can find them). This is the route I took. The '68 frame brackets will allow you to use the standard aftermarket replacement "66-70 289/302/351W non-convertible" mounts. Even if you do have to replace the mounts in the future, it's still the same mount. And on the upside, you can sell your old frame brackets on ebay as '67-70 390/428 frame brackets, as they all use the same bracket as yours.
3) Drill your existing frame brackets with a new hole in the proper location. I'm not a fan of this, as the new hole is VERY close to the old hole. In theory it will work fine as long as everything's torqued down real good, but I personally wouldn't want to do it. However, if you want to go this route, I can supply a template to show you where to drill the hole.
5th Gear Member
Joined: Nov 2004
Posts: 2,176
From: Insanity
67 had special 1 year only motor mount design so figure but the motor mount kits that have the motor and frame mount are $100-$120. Is he planning on replacing JUST the motor mount of the whole motor and frame mount. What's the shop's hourly rate? $80/hour? $60 an hour?
I can easily see it being billed out as a 3 hour job
I can easily see it being billed out as a 3 hour job
3rd Gear Member
Joined: Mar 2007
Posts: 574
From: Houston, TX
Last year I pulled my engine to upgrade from manual to power steering. Both motor mounts came out in two pieces, so I went to the local O'Rielly's and bought new ones.
When your motor is hanging from a hoist, 3/4 of the way back into the car - that's NOT the time to find out what these guys are telling you is true. The motor mounts wouldn't fit.
I even went to John's Mustangs here in Houston. He offered me the exact-same mounts that O'Riellys sold me. He insisted they were the right mounts for the '67 289.
When your motor is hanging from a hoist, 3/4 of the way back into the car - that's NOT the time to find out what these guys are telling you is true. The motor mounts wouldn't fit.
I even went to John's Mustangs here in Houston. He offered me the exact-same mounts that O'Riellys sold me. He insisted they were the right mounts for the '67 289.
i love em. saved me 100 or so bux too lol
3rd Gear Member
Joined: Oct 2007
Posts: 671
From: Florida
http://www.mustangsunlimited.com/ite...atkey=EMUSTANG
those are the ones i bought from NPD.. they're the same at Mustangs Unlimited. had no problems with them. went on like cake.
those are the ones i bought from NPD.. they're the same at Mustangs Unlimited. had no problems with them. went on like cake.