84 chevy 1/2 ton swapping to a 1 ton running gears

i have a 84 chevy truck with 1/2 ton running gears,4 inch lift,35 inch boggers...........ok heres what i have bought to up it a lil 42 inch super swampers tsl on 16-10 procomp 8 lug procomp wheels, 12 inch lift....and 3 inch body lift....i bought the wheels and tires for 8 lug i have swapped 3/4 ton out with 1/2 ton a few times. was wondering how hard it would be to do a 1 ton swap?i know i have to change the front brake calipers.any thing else to do this swapp before i decide to do it?  

Then only real difference between a GM 3/4 and 1 ton is front axle. Rear is the same. A 1 ton has a D60 in front. As far as brakes, why not use the ones on the new axles??? You should upgrade master cylinder as the bigger brakes on those axles need a bit more fluid flow. I "trust" that you are going to properly regear axles and not operate under the illusion that a 4.10 gear or so is proper for that tire size.  

ty for the help ,i wasnt sure if the steering would bolt up the same i have a new drag link and drop pitman arm that came with the 12 inch lift...do you know if the make 2 -3 inch block to go under the steering arm of a 1 ton......and again t for your help  

I would suggest that you rethink the steering here and for a few reasons. One is for 42's, your real should convert to cross over steering as planed setup places a lot of stress on current steering box and it will not live long and stock steering setup will be vague at times and tend to wander some with this lift and tire size. Also you should give some serious thought to upgrading steering box with one out of a MD truck (a C40 or C50) because these steering boxes are much stronger. Behind that you need to beef up frame rails to even use stock box, you could modified the beef up to support a stronger steering box.  

k3nny25053:
i have a 84 chevy truck with 1/2 ton running gears,4 inch lift,35 inch boggers...........ok heres what i have bought to up it a lil 42 inch super swampers tsl on 16-10 procomp 8 lug procomp wheels, 12 inch lift....and 3 inch body lift....i bought the wheels and tires for 8 lug i have swapped 3/4 ton out with 1/2 ton a few times. was wondering how hard it would be to do a 1 ton swap?i know i have to change the front brake calipers.any thing else to do this swapp before i decide to do it?

That sounds like a trick deal! Can I just recommend the high-steer crossover steering setup is well worth the money and is really easy to install. Sky-Manufacturin.com has an awesome setup for the Dana 60s. I have the setup for the D44 in my rig and I have no issues at all with it and it is a big difference in all around handling. I'd give them a call and they can help you get what you need. Good luck with the build. I'd like to see it when its done.  

whats wrong with a 14 bolt runnin 42s sure acceleration on the road wont be as good but as for spinning them the one ton is absolutely fine and 4.10 is not all that bad of a ratio 4 42s now if you want to throw another grand into the axle then yeah re-gear it and lock it *** get some chromoly shafts too no youre lookin for an axle that will handle them the chevy one tons are fine
also use the brakes that are on the axles redo them if needed but yes look into a one tons master cylinder and possibly a new brake booster summit has an electric brake booster perfect for big ass tires for pretty cheap too just dont get it if u take your rig snorkeling  

id recommend the Gm Hydrobooster. with the 1 ton mastercylender. ive driven an 87 GMC K3500 with the hydroboost brakes and that truck could stop anything.  
[X] Give Er Hell [X]

chevybass420:
whats wrong with a 14 bolt runnin 42s sure acceleration on the road wont be as good but as for spinning them the one ton is absolutely fine and 4.10 is not all that bad of a ratio 4 42s now if you want to throw another grand into the axle then yeah re-gear it and lock it *** get some chromoly shafts too no youre lookin for an axle that will handle them the chevy one tons are fine
also use the brakes that are on the axles redo them if needed but yes look into a one tons master cylinder and possibly a new brake booster summit has an electric brake booster perfect for big ass tires for pretty cheap too just dont get it if u take your rig snorkeling

where in the world did you hear that running 4:10s with 42? 4:10 are marginal with 35s much less 42........ have you everdriven a truck with big tires and tall gears? theres nothing okay bout it unless..... maybe its just a show truck that can't do anything  
solid axle chevys cant be beat
78 K5: 350 V8,700r4,np208, 8 lug D44 4:88, 14 bolt 10.5 4:88 with detroit locker and 35 inc parenelli jones dirt grip tires

i got a 78 k10 on 37s for starters and i wont get into the rest a 14 bolt will do perfectly fine off road if youre looking to climb or bog through some serious *** than like i said throw that extra grand in each axle but if you want a strong axle that u can take off of any truck in the junk yard and not spend an arm and a leg on new parts than youre fine with the stock 14 bolt but if youve got the cash put 2 tons or rockwells on it if cost is not an issue i can come up with a ton more ways to make an axle stronger the 14 bolt stock will do you fine goin through the *** unless you are going crazy then upgrade your 1/2 tons itll be cheaper and lighter just as strong except the carrier thank u and good night  

oh im not complaining about the 14 bout everyone knows how strong that thing is... but no matter what axle 4:10 ratio is WAAAYYYY to tall for 42 inc tires no mater if you drive on the street, mud, snow, sand etc...  
solid axle chevys cant be beat
78 K5: 350 V8,700r4,np208, 8 lug D44 4:88, 14 bolt 10.5 4:88 with detroit locker and 35 inc parenelli jones dirt grip tires

I have a 1984 chevy k5 blazer diesel 6.2 liter and I have stock 6 lug axle on 33 inch tires and I was woundering if I should put a rear 3/4 ton or 1 ton axle, and what do you recomend putting in the front because i love going to the mud pit in azusa canyon in los angeles. Thanks  

you can beef up the 10 bolt front to 8 lug and install a 14 bolt rear. The main trouble with the 1/2 ton stuff is the small spider gears and small splines.