I am thinking of making a 4" kit for someone who has contacted me. They want a 4" kit and they want it cheap. So I was thinking of using some 2x4" square steel tube. If I get the tube in 4mm to 6mm thick could I use the double bolt system? The one that you use 2 bolts in place of one long bolt? Or would you still need 1 long bolt with a reinforcing tube in the middle of the block?

I am thinking of making a 4" kit for someone who has contacted me. They want a 4" kit and they want it cheap. So I was thinking of using some 2x4" square steel tube. If I get the tube in 4mm to 6mm thick could I use the double bolt system? The one that you use 2 bolts in place of one long bolt? Or would you still need 1 long bolt with a reinforcing tube in the middle of the block?

 

go with the double bolt, simpler to install, cheeper bolts, need no reinforcing tube

go with the double bolt, simpler to install, cheeper bolts, need no reinforcing tube

Cheers mate, thanks for your advice!

Should I go for any thicker then 4mm?

I'd suggest 6mm(about 1/4") thick tubing, it will be stronger.

Ok, 6mm or there abouts. Thanks.

Are they going to be doing hardcore 4x4'ing? I bent my 4" blocks and have since gone back to 3" front, 2" rear. that fits 27" tyres fine. When I get bigger tyres I'll cut rather than lift.

 

I've noticed no real advantage in 4" as opposed to 3"/2"

They indicated that they just want it to look better and bigger. That's why they want 4", and not 2".

 

Personally I like the back jacked up, so I use 2" all over.

My lift blocks are double bolted, but definatly go with 6mm and not 4, it will be worth it in the long run

Alrighty, Thanks for your help. Time to go get prices...