4x4 IFS Swap in Heavy truck

[IdaSHO]

This site mentions what Im talking about.

The Super60 was originally designed for the high GVWR medium duty trucks, but then introduced in the "light duty" category as the fat-boy.

I think its all the same axle, but with different hubs adaptors, and in some cases, different knuckles.

Motortrend

 

[javajoe79]

I’ve heard of different axle tube diameters and wall thicknesses between different 60s too. Not sure which ones though.

 

[IdaSHO]

I'm not aware of any axle tube thickness variations in the Super60

They are massive in every way compared to the old Dana60 though.
The old D60 looks like a toothpick compared to a Super60

Then the guts....

 

[MTVR]

The GAWR of the TAK-4 on the MTVR ranges from 16,000 pounds to 25,500 pounds per axle. How much is the GAWR for the little Dana 60 Super-Duper?

 

[IdaSHO]

7,350lbs for the Super60 per Dana

C700s come with a variety of front (beam, not driven) axles, ranging from 6500lb to 7500lb as I recall.

Like I said, the S60 would be a great axle for this application, and would be superior in every way to the axle currently under the truck.
Even better considering this....

This is a 26,000 GVWR truck, an ex-PG&E utility vehicle I don't plan to get anywhere near that weight.

So its just a matter of sorting out the rear, based up projected curb weight.

BTW, nobody cares about your MTVR or its capacities.
Certainly has zero relevance in this discussion.

 

[quickfarms]

The 10 lug bud wheels on the truck indicate that it is probably a heavier spec with air brakes. Based on this the front axle is probably a 9,000 lb axle

Without the year, vin and the vehicle rating decal it is impossible to know how the vehicle was built.

The C series was in production from 1957 until 1990.

I have copies of the ford medium/heavy duty specification books for the end of the production.

 

[IdaSHO]

Yep, quite possibly.

Though like most axle ratings, things change based upon application.
The "9k" axle could very well be the same exact axle as the lighter rated units, but is rated less due to various things.
Like the mentioned bud wheels

Pretty commonplace. Its exactly why you will never see the 7350lb rating as a GAWR on a superduty.
The OEM wheel/tire package often dictates the GAWR.

 

[MTVR]

7,350 pounds is less than half of the 16,000 pound rating of the TAK-4 in the front of our vehicle, which also has 16" of suspension travel.

How much suspension travel do you think he's gonna be able to get out of a Super-Duper 60 under the front of his C700? Even with very little travel, he would have to jack up his vehicle quite a bit, just to keep the pumpkin and axle tubes from hitting the engine and frame on compression.

Let the OP build his truck the way he wants...

 

[javajoe79]

7,350 pounds is less than half of the 16,000 pound rating of the TAK-4 in the front of our vehicle, which also has 16" of suspension travel.

How much suspension travel do you think he's gonna be able to get out of a Super-Duper 60 under the front of his C700? Even with very little travel, he would have to jack up his vehicle quite a bit, just to keep the pumpkin and axle tubes from hitting the engine and frame on compression.

Let the OP build his truck the way he wants...

16000lbs and 16” you say? Call me crazy but I feel like we’ve all read that info before.

 

[MTVR]

16000lbs and 16” you say? Call me crazy but I feel like we’ve all read that info before.

Do you have something legitimate to add to this discussion, or are you just going to continue trolling?

 

[javajoe79]

Do you have something legitimate to add to this discussion, or are you just going to continue trolling?

Choice response. ?? Project much?

 

[IdaSHO]

Oh the ignorance...
But at least he found a calculator to use.

Lets see....

This is a 26,000 GVWR truck, an ex-PG&E utility vehicle I don't plan to get anywhere near that weight.

So the fool thinks a 16k axle is the correct axle under a 26k truck that will be nowhere near max GVWR.
Assuming it has a 8k front axle (50% of the silly 16k suggestions)

26k GVWR minus 8k (front) = roughly 18k (rear)

So by his (failed) logic the truck should have what, a 36k rear axle?

All the while operating well UNDER the 26k GVWR See, I can use a calculator too.




Like I said, your MTVR has zero relevance in this discussion.

 

[javajoe79]

Oh the ignorance...
But at least he found a calculator to use.

Lets see....



So the fool thinks a 16k axle is the correct axle under a 26k truck that will be nowhere near max GVWR.
Assuming it has a 8k front axle (50% of the silly 16k suggestions)

26k GVWR minus 8k (front) = roughly 18k (rear)

So by his (failed) logic the truck should have what, a 36k rear axle?

All the while operating well UNDER the 26k GVWR See, I can use a calculator too.




Like I said, your MTVR has zero relevance in this discussion.

But did anyone mention it has 16” of travel?

 

[BeNimble]

I picked up a 2008 F550 with a bad diesel engine since not allowed to be registered in CA anymore, so can get them cheap right now.
The C700 has air brakes and drums, so wanted to get the F550 disk brakes and master cylinder.

 

[IdaSHO]

Sounds like a plan.

Having an entire truck will help a bunch.

Is the C700 gas or diesel?