Hi-Lift jack to family roll bar mount project - Jeep Wrangler Forum
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Old 05-14-2018, 04:48 PM
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Hi-Lift jack to family roll bar mount project

After trying various mounts made by Hi-Lift that didn't work i am going to build my own. I am using 1-1/2" channel thats 1/2" tall that will bolt in place of the rear seat belts. Not sure if i am going to tap the upper holes or not. Once the weight of the jack is on the mounts if it don't seem sturdy enough i am going to run a 5/16" tap into the holes and put upper bolts in it to make it more rigid.

There is not a lot of room to work with in the back of a YJ with the family bar the Hi-Lift fits VERY tight! I am going to be using 1/2" bolts with wing nuts to secure the jack. I am concerned that once it's all welded together there will not be enough to slide the jack off the bolts because the base of the jack will probably hit the tub.

But i have thought ahead and i replaced the Hi-Lift jacks cotter pin that holds the base of the jack to the bar with a 1/4" quick release pin. It ads another step in jack removal but it is quick release and will only take a few more minutes to pull the pin remove the base. Then remove the wing nuts on the brackets, remove the jack from the jeep then slip the base back on and put quick release pin back in.

For the arms that come off the channel that bolts to the roll bar i am using 1" square tube. I will probably weld in some little gussets for the arms coming off to help support the weight of the jack. I am still not sure how i am going to weld the 1/2" bolts to the 1" square tube though. I might take some 2" wide 3/16" thick plate steel about 2-3" long and drill a hole in the center and run the bolt though it and secure it with a 1/2" jam nut. Since the bar of the jack is 2" wide it will give a nice wide stable place to the bar to set against and the jam nut should fit into the recess of the hi-lift bar. Then weld the plate to the nut so that the bolt head is inside the tube. This way if the bolt threads ever get damaged i could take the jam nut off. Then knock the bolt out the back of the tube. Then put a new bolt in and put the jam nut back on.

Not sure how well this is going to work but i been brain storming ideas this is the beginning stages of it mocked up in the position i think it fits best. And there is no need to remove the clamp at the end of the jack it fits inside the tub.

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Old 05-14-2018, 06:48 PM   #2
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I think I've posted this before. About $8.00 for (2) 2 1/4" muffler clamps.
Pics were taken prior to paint job.

In 4 years, I've never used it.

Good Luck, L.M.
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"Wrangler....It's not just a vehicle, It's a lifestyle".
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1987 YJ-4.2L-Standard Shift- Re-manufactured Carter Carb-2" body Lift-31X10.5X15 BFG KOs-190K Miles No back seat.
HEI distributor with computer and all related relays and wiring removed.
12K Badlands winch with dual batteries.
Warn front bumper. Matching imitation Warn bumper on the rear.
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Old 05-14-2018, 07:44 PM
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Quote:
Originally Posted by Luckymac View Post
I think I've posted this before. About $8.00 for (2) 2 1/4" muffler clamps.
Pics were taken prior to paint job.

In 4 years, I've never used it.

Good Luck, L.M.

I tried this with some muffler clamps i had laying around and it didn't work. The brand name hi lift jacks have bigger holes in the bottom than the Chinese jacks. And the clamp on the end of the HiLift hampered mounting the top of it too. Even if i could have got it mounted i don't know how well muffler clamps would hold up in a trail jeep. I would imagine it would start sliding down the family bar if i could put wing nuts on it. Not sure what size threads muffler clamps are maybe 5/16"? But i don't think i could get them tight enough to stay put on rough trails.

And i want to use 1/2" wing nuts like i used to have mounted to my front bumper. They held well with a split washer and never came loose and were easy to remove without tools. This setup should work well and hold up to and off-road beating while being easy and quick to remove without tools if i ever need it.
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Old 05-14-2018, 10:44 PM   #4
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Those U-bolts are 3/8" X 2 1/4". I've been on some rough trails and the jack has never come loose. Wing nuts are a good idea. I need to go to the auto parts store in the next couple days, I'll get some. Thanks.

Good luck, L.M.
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"Wrangler....It's not just a vehicle, It's a lifestyle".
.................................................. ........................
1987 YJ-4.2L-Standard Shift- Re-manufactured Carter Carb-2" body Lift-31X10.5X15 BFG KOs-190K Miles No back seat.
HEI distributor with computer and all related relays and wiring removed.
12K Badlands winch with dual batteries.
Warn front bumper. Matching imitation Warn bumper on the rear.
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