View Full Version : Lift Blocks
temps425
07-24-2010, 01:23 PM
Hello, what size lift blocks do I need to net a 1" lift in the back? I noticed there are already some lift blocks that look to be about an inch back there.
draglink
07-24-2010, 01:35 PM
So you want an 1" more than you have now right? Go with a single 2" block. Lift blocks should net close to the height of the block. A lot of people dont like blocks(REAR ONLY). If your mainly on the road and light off-road they will be fine.
Tigger4X
07-24-2010, 01:35 PM
:eek: BLOCKS?! :eek: ACK! ... Are you dead set on them? Blocks are scary stuff offroad. And you for sure dont want to be stacking them!! Look into some extended shackles. I think TAD might still sell his stuff on here. Use the search feature for shackle flip kit and check 'emout. TADs stuff kicks arse! :thumbsup:
I would avoid blocks altogether if I could. I certainly wouldn't use them in the front. In fact, they're usually not DOT approved for use on a front axle for very good reasons.
If I had to go with blocks, I would never stack them. Ever. Always get one single block of the height you want. And never go very tall with them. The height of the block is usually the amount of lift you get from them. If you don't have a block and want 1" of lift, a 1" block will give you that. If you already have a block, a 1" taller block will give you that one more inch. But if they get too tall, they become unstable and are dangerous, especially off road.
Instead of blocks, I would try extended shackles for up to 1" of lift. BJs offroad sells good ones here: http://www.bjsoffroad.com/CartGenie/prod-470.htm
Anything over 2" of lift total I would go with new springs.
azpackrat
07-24-2010, 02:09 PM
How do you achieve a lift from an extended shackle when it's inverted? an extended shackle on the rear of a FSJ would lower not lift. The only real problem with a moderate height block is the potential for axle wrap with a soft spring. By the way, axle wrap works both ways, under hard acceleration and hard braking. So if your springs are real soft you should consider an add a leaf.
Tigger4X
07-24-2010, 03:06 PM
mistyped or misread the flip shackle is what is intended/inferred :o
TT's FABWORKS ~~~>
http://www.ttsfabworks.com/
BJ's OFF ROAD ~~~>
http://www.bjsoffroad.com/CartGenie/prod-842.htm
temps425
07-24-2010, 04:42 PM
So you want an 1" more than you have now right? Go with a single 2" block. Lift blocks should net close to the height of the block. A lot of people dont like blocks(REAR ONLY). If your mainly on the road and light off-road they will be fine.
OK< Thanks. So a 2" block should net 1" above where the truck currently sits, correct? This is for street use only, I'm doing a 1" shackle lift on the front and 1" block on the rear so there is a slightly better look.
temps425
07-24-2010, 04:43 PM
:eek: BLOCKS?! :eek: ACK! ... Are you dead set on them? Blocks are scary stuff offroad. And you for sure dont want to be stacking them!! Look into some extended shackles. I think TAD might still sell his stuff on here. Use the search feature for shackle flip kit and check 'emout. TADs stuff kicks arse! :thumbsup:
I'm interested in rear application only...
draglink
07-24-2010, 06:15 PM
OK< Thanks. So a 2" block should net 1" above where the truck currently sits, correct? This is for street use only, I'm doing a 1" shackle lift on the front and 1" block on the rear so there is a slightly better look.
You got it!:thumbsup:
Tigger4X
07-24-2010, 09:02 PM
I'm interested in rear application only...
Yeah, I know ... well, had hoped but further posts confirmed this. I still say Blocks? ACK!! For strict street use a 2" block shouldnt be too bad just keep an eye on 'em and check the nuts on the u-bolts at regular intervals for a short while to make sure they stay torqued down as they like to squirm around.
temps425
07-25-2010, 01:21 AM
Yeah, trying to get rid of the wag sag...was thinking about using rear add a leafs, but I wanna keep that smoooooth stock ride quality since this truck will never leave pavement :thumbsup: My other wag gets punished off road...
Tigger4X
07-25-2010, 01:45 AM
I dont know why I didnt think of this sooner! :o And I wish I could find the pics I have of how I did a home fabbed fix that eliminated the blocks the PO had on the Chero when I saved her. But they would be best suited to help over come rear sag on an SOA. However you can use the second half of the mod as a fix for your situation. You have to drop the rear eye of the rear springs and then remove the shackles. You then cut out the bottom of the shackle mounts. You do need some flat stock to weld onto the top outer edge of the shackle mounts on an angle up to the outer edge of the frame. Now you reinsert the shackles into the mounts and check the back and forth movement of the shackles. You will most likely need to clearance the (IIRC)rear lower edge of the shackle mounts to ensure the shackles wont bind. For street driving this shouldnt be much of a big deal. Now remove the shackles for the last time and pait up the mounts so it doesn't rust up; now bolt the shackles and springs up and you should have overcome the rear sag. You will most likely have some rear end rise.
temps425
07-25-2010, 12:44 PM
You have to drop the rear eye of the rear springs and then remove the shackles. You then cut out the bottom of the shackle mounts. You do need some flat stock to weld onto the top outer edge of the shackle mounts on an angle up to the outer edge of the frame. Now you reinsert the shackles into the mounts and check the back and forth movement of the shackles.
I'm not sure I get exactly what you mean, I get cutting out the shackle mount, adding some metal for some height, then rewelding.
Also, I'm interested in the Tad shackle lift. Thats for front only right?
temps425
07-25-2010, 12:56 PM
Hey Draglink, I don't see the BJs 1 1/2" lift shackles on their webpage...only 1 and 1/2". Are these still available?
Wayne
07-25-2010, 01:50 PM
The shackel flip is for the rear, the kit gives you 6" of lift to
match soa in front. if you just did the shackel end and not
the spring mount at the other end, you should end up
with 3" of lift.
Skeeter74
07-26-2010, 02:15 AM
I'm not sure I get exactly what you mean, I get cutting out the shackle mount, adding some metal for some height, then rewelding.
Also, I'm interested in the Tad shackle lift. Thats for front only right?
Tad's lift is for the rear as stated above, and I think Tigger4X is talking about what I have heard called the "redneck shackle flip." Essentially, you are just flipping the shackles using the same hole and then rebracing the shackle mount. You just have to cut out the bottom of the shackle mount, flip the shackles from a "tension" set-up to a "compression" set-up. Then, you weld some strap in to the top/front area of the mount to make up for the material you removed from the bottom.
draglink
07-26-2010, 05:01 AM
Hey Draglink, I don't see the BJs 1 1/2" lift shackles on their webpage...only 1 and 1/2". Are these still available?
Temps, I dont see them either, I would go with the 1". The lift shackles throw your front end out of caster a little so 1.5" is about the max I would go, 1" would be perfect
fulsizjeep
07-26-2010, 05:12 AM
Please take this from someone who has been running on the same 2" rear blocks for 12 years and pounding plenty of trails during that time. THEY WORK :rolleyes:
draglink
07-26-2010, 05:30 AM
Please take this from someone who has been running on the same 2" rear blocks for 12 years and pounding plenty of trails during that time. THEY WORK :rolleyes:
X2!!:D
There are alot of trucks that come from the factory with lift blocks in the rear
jeeper54
07-26-2010, 04:13 PM
Although I am not a big fan of lift blocks, I have used them with good results. I wouldn't go beyond a solid 2" block and for a FSJ use steel and not alum. if possible. I have a pair of alum. blocks I use for wheel chocks. Alum. can be as strong as steel when heat treated properly but can corrode if not treated.
jeepjerry
07-26-2010, 09:03 PM
It would be unlikely to see any problems with a 2" lift block. I have 2.5" steel blocks on my off roader and pound the heck out of it. Sure there is axle wrap but there is axle wrap with out lift blocks too.
Tigger4X
07-27-2010, 11:56 PM
. . . and I think Tigger4X is talking about what I have heard called the "redneck shackle flip." . . .
Essentially .... yes :D Even more redneck after you do it in the sun with no sunblock like I did today. :o
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