Lowering block geometry

[clemsonteg]

For a coil spring rear, if all things remain the same and the only thing you do is install lowering blocks, does the axle get closer to the frame? For example the difference between 4" lowering springs and 6" lowerings springs would be 2" from the axle to the frame. If you were to install 2" blocks with 4" springs would you have the same axle/frame clearance as 4" or 6" spring?
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[TexasSteve]

I've never seen a lowering block for a coil spring suspension.

Blocks only lower a leaf sprung truck if the leaves are under the axle. If the leaves are above the axle then block will lift the truck.

I have seen circle spacers to go above or below a coil spring, but they all lift a truck, none will lower a truck on a coil sprung truck.

[mixermike]

Yes the blocks will move the axle closer to the frame...on a coil spring truck the blocks go between the trailing arm and the axle....you will need longer U bolts also
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[T Smith]

Yes, the blocks decrease axle to frame distance just like springs.

Everyone makes them...

http://www.performanceonline.com/60-...ock-kit-PO204/

http://www.classicperform.com/Store/...Truck/CP45.htm

http://www.brotherstrucks.com/products.asp?dept=671

[TexasSteve]

How are people deciding anything about them not knowing his truck? I see nothing indicating what truck he even has.

I see posts like this around this site....Asking questions regarding something truck specific without anything saying what truck they are working on. How do you guys find a solution without knowing the truck?

I looked at the links provided by T Smith & blocks for trailing arms are being referred to as coil spring blocks?

[mixermike]

These trucks only came in 2 versions, leaf springs or coil spring on trailing arms
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[TexasSteve]

Originally Posted by mixermike

These trucks only came in 2 versions, leaf springs or coil spring on trailing arms
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"These trucks....." How do we know what truck he is asking about? I see nothing in his post nor in his Profile to say.

It'll be different if this question was in a specific year range Forum, but it isn't. It is in the General Suspension area. His Post doesn't even mention a trailing arm so......

[lolife99]

And he said,... "for a coil spring rear",...

[fleetsidelarry]

TexasSteve, what year chevy truck has rear coil springs without trailing arms? I mean, I don't know my new trucks, so maybe I'll learn something here.

[TexasSteve]

Originally Posted by fleetsidelarry

TexasSteve, what year chevy truck has rear coil springs without trailing arms? I mean, I don't know my new trucks, so maybe I'll learn something here.

No mention of trailing arms nor stock or modified. I assume NOTHING when reading posts, like assuming that the post is referring to a stock (whatever year/make/model) something or a custom build.

Is it ok for me to laugh if he comes says & says it it a custom build which is why it wasn't posted in a year range specific section? :P

[Tx Firefighter]

I went by his previous posts which say he has a 70 model C10. Therefore, the discussion here is pertinent and accurate.

Somewhere on here, there is an FAQ article I wrote years ago concerning building your own lowering blocks if you're so inclined.

Yes, the blocks will decrease the axle to frame distance the same as a drop spring would. One advantage of lowering blocks though, is that you gain the drop you desire without messing with shock absorber length or geometry, unlike using a drop coil spring. If lowering blocks are used in conjunction with drop springs, you get a net drop of the combination of the two (ie, 2 inch spring plus 2 inch block equals 4 inch drop), but your stock shocks will still work and you won't need relocators like you would if you used a pure 4 inch drop coil spring.

[fleetsidelarry]

Originally Posted by TexasSteve

Is it ok for me to laugh if he comes says & says it it a custom build which is why it wasn't posted in a year range specific section? :P

yes, of course

[T Smith]

I may be off an inch or so here but y'all can correct me, one thing to keep in mind when using blocks 2" or thicker is that if you have a flat tire hard stuff will hit the ground before the rim if you stay with 15" wheels, not an issue with larger rims say 17" and above.

[Tx Firefighter]

Two inch blocks are about as far as you want to go to avoid scrub line issues. Plus, the truck looks funny from the rear if you go too large on the blocks.
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[TexasSteve]

Or even better (imho).....There shouldn't even be a General Suspension area. Each year range should have its own sub-Section for Suspension I(and engine/exhaust/etc.).

[Slow Build]

He's basically asking is, does 2+4=6 to which the easy answer and only answer is yes.

[lolife99]

I think we all got off on the wrong foot in this thread.

This is a great place to learn and share info.
I think the OP's question has been answered.

[SCOTI]

Originally Posted by TexasSteve

I've never seen a lowering block for a coil spring suspension.

Blocks only lower a leaf sprung truck if the leaves are under the axle. If the leaves are above the axle then block will lift the truck.

I have seen circle spacers to go above or below a coil spring, but they all lift a truck, none will lower a truck on a coil sprung truck.

Perhaps others know more about this subject than you....

I don't see where it is that you answered the OP's original question in your initial response w/o making your own assumption. Several on here do know that there are lowering blocks made for coil spring suspension applications.

Take a step back. No need to leave....