Rough country lift

[Broken85]

The heavy duty front end is enumerated on the build sheet (F60 Heavy Duty Front Spring). I imagine that it is basically a mid 80's version of a snow plow prep package or something which lines up with my trucks original build because it also came with UA1, Dual Batteries. We have several squares on the farm. The only one with similar front end is one of the K20 that we have (with an actual plow on it). I expect F60 is basically a 3/4 ton front end set up on a 1/2 ton. Makes the short bed ride like a fork lift.

Without a measuring tape, I would say the blazer and a short bed are probably the same frame, but someone on here will confirm or correct me on that I'm sure.

 

[Grit dog]

Holy crap. Anything I tow or haul with, I run max pressure in the rear and substantially less in the front. Normally 50F and 80R. The big exception would be my old crew cab dually has bias plies with a max psi of 50, so I run 50 all around.

Ain't no way I'd ever be comfortable with only 30 in the rear, especially if it's SRW.

I should have been clearer in that I’m talking empty truck bed and the Cummins is on 37s.
Many people don’t understand safe minimum load vs tire pressure.
But if you look at the attached chart (same for virtually every brand/model of tire as load cap is a function of tire size/sidewall height/width and of course pressure, until you reach max capacity of course) you’ll see that the pressures I posted for the tires I have on those vehicles, the allowable load is greater than the vehicle weight per tire.
Unless I’m looking for (a placebo of) better mpgs or increased load or some other viable reason for running higher than min required pressure, like say high speed driving in winding roads, there is nothing wrong with the pressures I posted. Also of course if hauling a load or needing greater sidewall stability for towing a trailer that could toss the truck around a bit.
Of course the nannies (TPMS) in light duty trucks now would have the uninformed believing they need to run way higher than necessary pressure for the weight. But that’s mostly for idiot proofing in the name of corporate liability. Thanks Ford and your Exploders exploding Firestones for this….

You must be registered for see images attach

 

[legopnuematic]

The only one with similar front end is one of the K20

So from 1973-1980 the Dana 44 front axle was used on both K10 and K20 trucks, 1977 was also when the corporate 10 bolt front axle began its run, used in both K10 and K20 trucks, so they overlapped (10 bolt and D44) for a few years. @bucket and others can likely rattle off the specific differences between 1/2 and 3/4 ton units. The actual differentials for the respective axle (D44 or 10B) are the same between 1/2 and 3/4 ton.

Now K30s 1977-91 got a Dana 60 front axle. But 10-20 series shared the same D44 or 10 bolt.

A blazer is 106.5” wheel base and 184.5” OAL.
A SWB pickup is 117.5” wheelbase and 190.75” OAL.

 

[Grit dog]

Holy crap. Anything I tow or haul with, I run max pressure in the rear and substantially less in the front. Normally 50F and 80R. The big exception would be my old crew cab dually has bias plies with a max psi of 50, so I run 50 all around.

Ain't no way I'd ever be comfortable with only 30 in the rear, especially if it's SRW.

I’ll add that of course if either truck had stock size pizza cutters on them, those low pressures suitable for the big tires would not apply.
Example, my F1shitty work truck, CC 4wd, stock little tires, summer I run about 45/35 cold. And of course half tons, the TPmS idiot light doesn’t start going off until down to 25psi.

Yet somehow my son’s 2017 Ram 1500 tradesman, CC 4wd Hemi, with the basic trailer package (no OE brake controller ) and even saddled with the last of the old 6speed automatic transmissions came with load range E tires and the TPMS is set way higher. It’s impossible to drive with the right pressure and not be well under the min pressure threshold to kick the idiot light on. That’s an odd thing that I’ve not seen since back in the day when Frod had that run of the heavy duty F150s that came with E load tires, after they ditched the weird light duty 7 lug “F250”s.