CK5
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Lift kit

bushing inner sleave size could be different but easy to fix with new bushing kit .

k20 could have the 56" rear springs . some had 52" rears . but blazers were all 52" . this can be worked around . but if the lift kit has just blocks in the rear then your o.k.

otherwise its a fairly stright forward install .
 
shackle flip is 1/2 ton / 3/4 ton / blazer / suburban specific but the 1ton k30 is its own . so that will swap over for you .

just be aware your pinion angle will need to be set on the short blazer wheel base . and 6" lift kit on short blazer = driveshafts .
 
shackle flip is 1/2 ton / 3/4 ton / blazer / suburban specific but the 1ton k30 is its own . so that will swap over for you .

just be aware your pinion angle will need to be set on the short blazer wheel base . and 6" lift kit on short blazer = driveshafts .
So I’d have to shorten the drive shaft?
 
no its the angle of the shafts that will prob make you do a rear c/v shaft with 6" lift and lengthen front and maybe some grinding or custom bigger c/v to handle the angle with the axle dropped when flexing .

my k30 with 4" lift and th400 trans with np205 transfer case i had to grind the front c/v head stops down to just make it work . when doing this you have to watch what your doing or if you go to far you can break the center pin out that holds the ball to keep the 2 joints in line or the c/v head wobbles and self destructs .

why the 6" lift kit ?
what size tires ?
what kind of wheeling ? pavement or mud or rock crawl ?
what trans and t-case in blazer ?
answer these and let us know to help you get the best bolt in options with least amount of major mods .
 

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