Would someone please explain the difference between a suspension lift and a body lift - JeepForum.com
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post #1 of 6 Old 09-19-2007, 09:24 PM Thread Starter
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Would someone please explain the difference between a suspension lift and a body lift

I have been doing lots of reading and am trying to keep the dumb questions to a minimum, but I have always used suspension components to lower a cars center of gravity.

Would someone explain difference between a suspension lift and a body lift and why would you want a body lift? The concept of a body lift is about as foreign to me as speaking Greek.

Thanks, Giff

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post #2 of 6 Old 09-19-2007, 09:43 PM
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Most 'real' trucks (unlike cars and car-like SUV's) use body on frame construction rather than a unibody. So, the body & frame are two separate units that are bolted together with rubber or polyurethane isolating bushings in between. A body lift in simplest form is just a set of spacers (and longer bolts) that extend the gap between the two. It's just cheap clearance for larger tires and like everything else has it up & down sides and can be overdone. A suspension lift is basically just a set of 'taller' springs (longer coils in the case of a TJ, leaf springs with more arch in the case of a CJ or YJ) that raises the frame further up away from the axles creating more room for bigger tires. Plusses & minuses there as well as well as different quality of springs and spring rates which will effect ride, handling & flex.

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post #3 of 6 Old 09-19-2007, 09:43 PM
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A body lift consists of blocks placed between the body and the frame where the body is bolted. A suspension lift usually is replacing the leaf springs with new ones to raise the frame and body. Both RAISE the center of gravity.

1984 CJ-7, 4" Trailmaster, 31's. Future plans include complete rebuild with SBC 350, Dana 44 front, Ford 9 inch rear, and SOA with highsteer.
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post #4 of 6 Old 09-19-2007, 09:44 PM
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People use a body lift to give them more room for larger wheels. Suspension lifts are done for the same reason but generally require more parts and money. A 2" body lift may allow you to jump up a size in tire while keeping your center of gravity lower. The frame/motor/tranny weigh quite a few pounds and lifting it all up 4" or more will effect it's handling. Body lifts are much cheaper and have much less effect on handling. Body lifting more than a couple inches will probably pose some problems and look goofy. Having said that, a 4" suspension lift can be safe and comfortable even though the center of gravity has been raised.

'75 CJ5 w/304/T150/D20/D44's/3.07/33" Thornbirds/Glass Body...
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post #5 of 6 Old 09-19-2007, 09:52 PM Thread Starter
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OK, I understand the difference now. I am 33, so I have really lived with unibody cars my entire life. The thought of body on frame didnt even occur to me.

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post #6 of 6 Old 09-20-2007, 03:49 AM
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Here is a list of ways you can lift a Jeep...



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