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The Terminator
How-To
Subframe connector installation tips - FLSFC
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<blockquote data-quote="rattle_snake" data-source="post: 11040643" data-attributes="member: 126699"><p>I 100% agree that a drive on lift is the best way. I don't have one so I decided to research until I felt confident that the job could be done satisfactory with jack stands. </p><p></p><p>I feel it is worth pointing out that a car with high power and decent traction (or even a stock mustang with slicks) can and will bend/tweak the frame/unibody. One could argue that a careful FLSFC install done with jack stands is better than a set installed on a lift, after the car is damaged/bent.....</p><p></p><p>Here is what I think is a 'decent' jack stand method</p><p>- Measure & record all 4 fender ride heights with tires inflated to known pressure.</p><p>- Lift and remove all 4 wheels.</p><p>- Place jack stands at the outer ends (safely) of the control arms OR under the lug studs if jack stands are big enough (again must be safe). </p><p>Note:</p><p> Because the frame only connects to the k member and IRS at set positions, one could argue that jack stands properly positioned under those positions would be equally effective. the MM directions mention this for the k member.</p><p></p><p>- Measure the height from the floor to the fenders. the difference between this and the original measurement should be constant offset. One could argue that there is no significant twist on the frame.</p><p></p><p>Most importantly if you don't feel comfortable, don't do it yourself, take it to a reputable shop with a lift. installing FLSFC is one of the most permanent modifications you can do.</p></blockquote><p></p>
[QUOTE="rattle_snake, post: 11040643, member: 126699"] I 100% agree that a drive on lift is the best way. I don't have one so I decided to research until I felt confident that the job could be done satisfactory with jack stands. I feel it is worth pointing out that a car with high power and decent traction (or even a stock mustang with slicks) can and will bend/tweak the frame/unibody. One could argue that a careful FLSFC install done with jack stands is better than a set installed on a lift, after the car is damaged/bent..... Here is what I think is a 'decent' jack stand method - Measure & record all 4 fender ride heights with tires inflated to known pressure. - Lift and remove all 4 wheels. - Place jack stands at the outer ends (safely) of the control arms OR under the lug studs if jack stands are big enough (again must be safe). Note: Because the frame only connects to the k member and IRS at set positions, one could argue that jack stands properly positioned under those positions would be equally effective. the MM directions mention this for the k member. - Measure the height from the floor to the fenders. the difference between this and the original measurement should be constant offset. One could argue that there is no significant twist on the frame. Most importantly if you don't feel comfortable, don't do it yourself, take it to a reputable shop with a lift. installing FLSFC is one of the most permanent modifications you can do. [/QUOTE]
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Subframe connector installation tips - FLSFC
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