What Height Lift Or Car Support Blocks

[Grumpy]

I am looking at building some blocks to set my car on while I do the tranny fitment for the cross member and other stuff.
I have seen the ones you suggest out of 2x4s, I am thinking of making them out of 2x5 tubing from scrap at work.
I was just wondering what height works best,
I want it up where I can work but not to high either.
How tall of blocks would you suggest?

you really need about 22"-to-23" clearance| measured from under the frame to the floor to easily use a creeper and remove a transmission,
or easily change a clutch or change oil, if the car or truck ground clearance sitting on the pavement is lets say 4" currently,
ID suggest the under the tire support column is 24"-that 4" or 20" tall under the tires,
if you have 8" currently, than 24"-8"= a 16" stack height

http://garage.grumpysperformance.com/index.php?threads/mechanics-creepers.3178/#post-38649

http://garage.grumpysperformance.com/index.php?threads/under-car-safety.26/

http://garage.grumpysperformance.com/index.php?threads/a-car-lift-in-your-shop.98/page-3#post-54953

http://garage.grumpysperformance.com/index.php?threads/you-need-decent-jack-stands.672/#post-28211

http://garage.grumpysperformance.com/index.php?threads/floor-jacks.969/#post-24460

1. 
   buy 8-10 8 foot long 2"x4" boards cut into 15 7/8" lengths and some good wood glue, and 4 16" square pieces of 3/4" plywood that are used to make sure each support stays square, plywood square placed mid stack, with 3 2x4s in each layer of the stack except the top where you use only the outer two, to prevent the tire from rolling off the stack,this will result in a support column about 14"-16" tall under each tire,
   be sure, you use good water proof wood glue, and allow it to set up over nite, before using the support stacks, and painting at a minimum, the bottom surface so it won,t absorb moisture is a good idea and a few dozen 3" wood screws
   
   
   
   this will give you 24 sections for each support for less than $40
   
   
   
   
   
   
   I generally keep about a dozen 16" square pieces of 3/4" plywood I can use to stack under my jack stands on asphalt drive ways, when I visit a friends house because jack stands don,t play well with asphalt drive ways in florida heat,(you get about 15 out of a sheet of plywood and home depot will frequently cut a sheet into squares cheaply or for free) these can be used to shove under the 2x4 support stands to vary the height on un-even or inclined ground
   
   I have built several sets of those under the tires support stands from 2x4 and pieces of scrap plywood Ive salvaged from construction sites in the past, but generally found I have donated those to someone ,as they only cost me time and a couple bottles of wood glue and a few dozen 3" deck screws as I own 6 of those harbor freight 12 ton jack stands
   as to swapping a trans and the required clearance under the car.. the clearance will vary with the car, mechanics creeper height, tire diameter and your belt size, this thread might be useful
2. while I try to buy American made products you would have to be very un-observant,
   to not have noticed that the newer HF floor jack quality has improved drastically from several years ago, and they come with a decent warrantee..
   
   https://www.harborfreight.com/3-ton-daytona-professional-steel-floor-jack-super-duty-63183.html?utm_referrer=direct/not provided&utm_referrer=http://www.yellowbullet.com/forum/showthread.php?t=2359697
   
   https://www.biztimes.com/2017/indus...q1ddA-YayE5NV-FsvuBYbbBl5NF7jeF6G1p2FzQQjfA6Q
   
   
   
   
   
   
   
   
   
   this is interesting
   https://www.biztimes.com/2017/industries/law/snap-on-harbor-freight-settle-floor-jack-case/
   
   http://garage.grumpysperformance.com/index.php?threads/jack-stand-failure.14691/#post-79350
   

 

[busterrm]

I was thinking of using 2x5x3/16 rectangular tubing and using 2x2x1/4 angle for cross braces. Possibly with the cross braces bolting to the rectangular tubing so they take up less room in storage when not in use.

 

[Grumpy]

once you get those made please post pictures