thinkin about different axels
Elder User
Joined: Feb 2007
Posts: 549
Likes: 1
From: Mississippi
not sure they would completely fit UNDER the truck as they are a good bit wider than the 250 axles. i think i'm right about that. checked on doing that to a '70 bronco i used to own and was going to have inspection problems since the wheels hung way outside the sheet metal. if i remember things halfway clearly, all the driveshafts would have to be different and the axles would have to be angled (rotated from normal position) so the differentials would not have an excessive amount of driveline angle. it's almost the same problem as jacking one up and not rotating axles.....puts so much stress on u-joints that they tend to grenade under pressure/load. not saying it can't be done 'cause it has, but not sure it's worth the aggravation and expense.
speedrdr
speedrdr
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Let me look here in the next day or so, there is a 2000 F350 Stroke in a garage a block from my house with Rockwells under it.
We are supposed to have rain tomorrow, so if the owner is over there working on it I will take a picture or two.
What you are wanting to run for tires will have a lot to do with how well it will fit.
That one next door has 53's on it.
Oh there is one more thing, the only gear ratio is 6.72, so speed will not be an option.
With a ZF 6 and 53" tires Robbies truck will be running 105 MPH at 3300.
With 35's and a four speed, 51 MPH would be 3300 RPM.
We are supposed to have rain tomorrow, so if the owner is over there working on it I will take a picture or two.
What you are wanting to run for tires will have a lot to do with how well it will fit.
That one next door has 53's on it.
Oh there is one more thing, the only gear ratio is 6.72, so speed will not be an option.
With a ZF 6 and 53" tires Robbies truck will be running 105 MPH at 3300.
With 35's and a four speed, 51 MPH would be 3300 RPM.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Ok as promised here is a set of Rockwells with 35" tires under an 86 F250.
And here is a set under a 1999 F350 Power Stroke with 53" tires.
Top speed on the 86 is 51 MPH with 35" tires.
Top speed on the 99 with a ZF 6 and 53" tires is 107 MPH.
And here is a set under a 1999 F350 Power Stroke with 53" tires.
Top speed on the 86 is 51 MPH with 35" tires.
Top speed on the 99 with a ZF 6 and 53" tires is 107 MPH.
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