Flat and raised to service an MT

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JHZR2

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Hello,

I know we have talked about jacks, jackstands, etc, but I never see a really definitive procedure or recommendation for getting a car raised and flat to do a service like an MT fluid changeout.

I tried making some very gradual rise ramps out of 2x12s but my miter saw couldnt cut a small enough angle (would be nice to cut it at 10-20 degrees).

I found that at 45 degrees, the smallest my saw would go. it was really difficult to get the car up on all four easily.

I feel that hydraulic jacking up by the corner damages the car, or compromises safety - if you do it metal on metal or car on jack pad, you risk bending pinch welds, harming crossmembers, etc. If you use wood as a buffer, it could splir or break and then cause issues too.

Worse, if you lift at the jack points, then where do you plae the jackstands? You cant exchange the lift for the jackstand at the jack point, so you hae to lower onto a jack stand on some other point of the body (assuming not a car with a frame) or the suspension, which Im sure is not good for the bushings and components/alignment.

Then you need to keep the jackstand from marring the underbody/undercoating/rocker coatings so that you dont create rust points... Again, if wood was used maybe OK, but then there is a safety issue.

Lift the car up high enough to put wood blocks under the tires (with edges to prevent roll in either direction of course), and maybe you have an answer, but then this needs to be done incrementally, which means a lot more time and hassle, especially lugging a decent heavy jack...

So what gives? What is best practice, considering safety first?
 
Originally Posted By: eljefino
Park over a ditch. Seriously.

Yep. I call 'em low-profile inspection pits.

Otherwise, you can do what rally teams do. Place ramps ahead of all four wheels and just drive on up...
 
Last time I did MT and rear diff fluid change, I drove up one end of the car on rhino ramps, and then just jacked up the other end using two jacks - jacking up little by little from each side until I got it level. The end of the car which was on ramps was the end that I was working on.
 
My apologies JHZR2, 2 similar threads, I'm tired and am..................an idiot.
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All my cars have jacking points @center front and rear. Pretty simple to lift one end then the other. Rotate the tires while you have it up there.
 
Originally Posted By: Drew99GT
My apologies JHZR2, 2 similar threads, I'm tired and am..................an idiot.
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huh? yeah, similar but different. This is about doing real service underneath safely when other options arent available (wish I had a ditch, but I dont, so I cant go that route...).

The other is purely speed for tire changing.
 
Originally Posted By: Pop_Rivit
That's why I like my KwikLift. It's one of the best investments I've made for my shop.


But can you get the tires off the surface of the kwiklift so that you can do suspension work? Otherwise it seems like an expensive way to do fluids and other parts like that.
 
A mid lift is an easy way but $$$. http://www.northerntool.com/shop/tools/product_200102674_200102674

Here is what I do for low profile sports cars which I believe is your issue. I have 2 floor jacks 1 large unit and smaller 1 I have had for years. I place the smaller jack under the rear of the car while I jack the front. I set it up so it just starts to apply pressure to the car then I go to my main jack at the front end and jack it off the ground, not to high and place floor jacks. Then I bring the larger jack to the rear of the car and lift it. Once you are on stands you can lift each end in increments until you max out your stands if you like. It takes some time but works well. Extremely low cars with long over hangs I drive up onto 4 pieces of 1x4 which does help.

I never lift at pinch welds and I often use pieces of wood. I typically lift using the front and rear subframes, same areas I use for placing jack stands. The front subframe should run right under the radiator on most cars. Trucks have full frames so no subframe under the radiator. I spend allot of time choosing the lifting points and placing my jack on low profile cars since I have to lay on my back while placing them.
 
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