> This is correct. I have seen the asymetrical lifts demoed with the lifts just assembeled and NOT bolted down. I would not want to swing from the back bumper, but they are well balanced and have big footprints to spread the weight. They require very little if anything beyond a standard rebar pour for attachment. When we converted a OLD warehouse to a shop, we put in 12 new twin post lifts by just drilling into the floor and installing sleeves for the bolts to expand. There were no "desiginated spots" for the lifts to sit on and be attached. Ray Jones > More likely he meant "hi strength" concrete, 5000 psi or so. I believe that Autolifters specifies at least a 6" thick pad about 3' - 4' square for each post to evenly distribute the load. > Dave Moore > Bob Jasinski <rpjasin@xxxx> wrote:Lawrence Jr said: > > <Since only 2 posts support the weight of the lift & car, a hi-pressure concrete floor is > a must> > > I'm not sure where you heard this, but it simply is not true. My lift is installed on a standard 4"-5" (approx) slab with rebar, and I have no cracks or damage to the concrete after 12 years of use. I spoke with the mfr before I poured the slab and there was no mention of "hi-pressure" concrete. The footpads are good size and distribute the load well. > > Bob J > > [Non-text portions of this message have been removed] > > > To send a message to this group, send an email to: > Chrysler300@xxxxxxxxxxxxxxx > > For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst. htm > > To unsubscribe from this group, send an email to: > Chrysler300-unsubscribe@xxxxxxxxxxxxxxx > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > > > ============================= > David Moore 203-949-1516 > Want to pay off debts and retire early? > Check out: > http://mysuccess.quickpros.biz > ============================= > > > > --------------------------------- > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now > > [Non-text portions of this message have been removed] > > > To send a message to this group, send an email to: > Chrysler300@xxxxxxxxxxxxxxx > > For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst. htm > > To unsubscribe from this group, send an email to: > Chrysler300-unsubscribe@xxxxxxxxxxxxxxx > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > > Ray & Jo Ann Jones Jones Ridge 113 Thunder Lane Mena, Arkansas 71953-7714 -- Sent using Voltage Net Webmail http://www.voltage.net/