No need to run the lower extenders on a 2/4 drop. Shocks do not have a sweet spot, i.e. in the middle of the stroke, for them to work properly. As long as they aren't bottoming or topping out in their travel, they will work as they should.
A 2" drop does not require a 2" shorter shock.
A 2" drop alters the shock angles very little.
A 2" drop with extenders will maybe/probably require a 2" longer shock.
Pix of the shock/exhaust clearance would help, but I don't think the lower extenders would help you much, as they push the lower shock mount
away from the diff in order to correct the somewhat more laid out position that they are at now.
Without pix, I'd say that the extenders would actually put the shock
closer to the exhaust.
There is a fix that may work for you, though.
BellTech makes an upper shock mount relocation kit. Usually used with 4" or more drop.
Part #6658. A little better than $100.00.
A bolt-in part.
The relocators move the top of the shocks closer to the diff housing so that they are in a more upright position, at the angle that they were designed to work at.
The kit does not require a different shock length. It merely repositions the upper mount.
Lower extenders are used mainly with 6" drops because they allow for a 4" shorter shock to be used. A 6" shorter shock wouldn't supply enough stroke to be useful on a truck.
The upper kit can be hard to find. B/T makes a run of them only every so often & they sell out pretty quick.
...and for some reason, most secondary sellers price them below the price directly from B/T.
Most descriptions on-line of the upper extenders is wrong. It's the same description, word-for-word, for the lower extenders! A screw-up by B/T?
Anyways, don't go by the written description. Check the pic & order by the part number.
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