Middle sierra lift blocks... help!

[derelict_frog]

Im doing a 2" body lift atm and we have put the front and back ones in but twhere the middel ones are there is a bolt poking down through where the 2" blcok needs to go and we don't know how were suppose to get it in there, do we remove the old bolt (if so how? you can reach at anyhow..) or cut or weld something else.

Any info would be great so were not sitting here wondering what to do!!!!!!

thanks!!!

[christover1]

depends on type of body lift you fitting...
you should do those first, before bolting up the others...

if you are using square tubes, use a nut to hold it to the car, and a nut and bolt to hold it to the chassis.

solid block type lifts sometimes are threaded, just screw them onto the captive bolt, then a blot goes thru chassis up into the block.

some people do hack out the bolt, big job, I would not do that myself.

christover

[derelict_frog]

Were using solid lumps of that plastic tubing cut into 2" lenghts.

Ive never heard of anyone else having to do anything major but this seems a bit severe.



Oh well it looks like were cutting out the bolt.... not the sort of thing i was hoping for....

[christover1]

Were using solid lumps of that plastic tubing cut into 2" lenghts.
Ive never heard of anyone else having to do anything major but this seems a bit severe.
Oh well it looks like were cutting out the bolt.... not the sort of thing i was hoping for....

they all have captive bolts on the middle side 4.
you could use the plastic ones on all the others, and use some steel box section on the 4 captives. no cutting needed then.
cutting out the captive bolts won't be liked by engineers, dunno if thats a worry or not

good luck

[derelict_frog]

I think we have decided on putting a block in and sitting the current bolt down through the middle of it then later on securing the bolt at the bottom.

[christover1]

I think we have decided on putting a block in and sitting the current bolt down through the middle of it then later on securing the bolt at the bottom.

the kits our prez makes do that, they use an internally threaded bolt that goes up into the block and onto the original bolt.
christover

[DiddyZook]

Listen to Chris. !!!!

Once you cut the captive bolt you had better have some good skills and more $$$ for an engineer.

With the poly lift blocks your best bet is to find a local stockist of specialty fasteners and source some internally threaded bolts. The thread you require is 10mm 1.25. Internally threaded bolts like this normally have about a 15mm external diameter so you will need to drill out your blocks to clear this (heaps easier in poly rather than solid steel). By memory, the thread on the captive bolt does not extend all the way to the floorpan and with a 2" lift you require the internally threaded bolts to be about 40mm long (best measure on your vehicle to confirm this).

The other small issue that will arise taking this path is: Those big washers that came off the captive bolts only have a 10mm hole in the centre. They now need to be 15mm. Check the specialty fastener joint or set up the drillpress.

[derelict_frog]

Yea so no cutting now.


My dad was talking about those special bolts you mentioned before so thats the way where going to go, there the only type of nut/bolt we don't have here.



Thanks for that guys, thats exactly what i wanted !!

[derelict_frog]

Well i got out of bed the smorning dad had already drilled the other bolts out, put a big washer either side and all i had to do was tighten them up lol. That made it easy, and really solid too.

2" lift looks wiked, cheap ($35) also tidied up a few other things on it too.

[christover1]

Well i got out of bed the smorning dad had already drilled the other bolts out, put a big washer either side and all i had to do was tighten them up lol. That made it easy, and really solid too.

2" lift looks wiked, cheap ($35) also tidied up a few other things on it too.

damn, mine cost me $40 I was ripped off

Good work, mate, well done.

christover