How does this rig sound?
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Elder User
Joined: Feb 2004
Posts: 787
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From: Stephenville, TX
How does this rig sound?
OK, heres an idea ive been toying with for a trail rig, tell me what you think of it.
Start with a 73-76 highboy w/D60's front and rear w/4.10's, manual trans, NP205, 390, lift it about 3-4 inches and trim the fenders some to fit 38's, and build custom winch bumper/brushguard. Eventually swap in a cummins 12 valve and 6 speed manual and run straight pipes (stacks coming out behind the cab).
This truck would be used strictly for off-road.
Start with a 73-76 highboy w/D60's front and rear w/4.10's, manual trans, NP205, 390, lift it about 3-4 inches and trim the fenders some to fit 38's, and build custom winch bumper/brushguard. Eventually swap in a cummins 12 valve and 6 speed manual and run straight pipes (stacks coming out behind the cab).
This truck would be used strictly for off-road.
Post Fiend
Joined: Jul 2003
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From: Spokane, WA
But of course a highboy won't come with a D60 front axle so you'll need to find one to throw in it. And be sure it's a kingpin axle, not a BJ. Also, especially if it's strictly for offroad use, go to at least 4.56 gears, not 4.10. You may even want to gear lower.
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Elder User
Joined: Feb 2004
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From: Stephenville, TX
Ya i'll swap in the D60 and 78-79 steering. I was considering the 4.10's because of the diesel but i will consider 4.56. oh ya, i is also going to paint it bright orange with a rebel flag on the tailgate
Posting Guru
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From: Chatsworth, CA
Cargo Master
Joined: Sep 2003
Posts: 2,110
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From: southwest pa
79, your headed in the same direction i am. i have a 75 f250 with a dana 60 front, np435, np205, and 4.10 gears. you wouldnt hafta trim any fenders to fit 38s with 3-4 inches of lift....these trucks can run 36s stock. i like the highboys, cant beat that split grill. best years imo.
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Lead Driver
Joined: May 2000
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From: Senoia, GA
Originally Posted by ivanribic
Also, especially if it's strictly for offroad use, go to at least 4.56 gears, not 4.10. You may even want to gear lower.
-cutts-
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Elder User
Joined: May 2004
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From: Shreveport, LA
Just outta stupidity, what do the gears have to do with the brakes?
And, again, because of ignorance, doesnt the torque converter increase the torque an engine puts out versus a manual transmission, gearing being equal?
And, again, because of ignorance, doesnt the torque converter increase the torque an engine puts out versus a manual transmission, gearing being equal?
Lead Driver
Joined: May 2000
Posts: 9,236
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From: Senoia, GA
if your in the lowest gear possible and you are rolling along it takes 2 or 3 times the braking power to stop b/c of the extra leverage of the gears! no it doesn't do anything directly but it is a lot easier to stop a lil Saturn car than to stop a 4x4 diesel in low range!
no a torque converter slips (that's why it doesn't stall the motor out when you stop) and therefore you lose power b/c it won't lock up completely unless you get an aftermarket converter! a manual tranny has a direct link straight into the tranny and there is no slippage!
-cutts-
no a torque converter slips (that's why it doesn't stall the motor out when you stop) and therefore you lose power b/c it won't lock up completely unless you get an aftermarket converter! a manual tranny has a direct link straight into the tranny and there is no slippage!
-cutts-
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Elder User
Joined: Feb 2004
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From: Stephenville, TX
Originally Posted by tmyers
Why not start with a 78-79 to begin with. Your lifting anyway plus you can get the D60's in it to start not counting the steering.
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From: Everett, Wa
Originally Posted by fishmanndotcom
no a torque converter slips (that's why it doesn't stall the motor out when you stop) and therefore you lose power b/c it won't lock up completely unless you get an aftermarket converter! a manual tranny has a direct link straight into the tranny and there is no slippage!
-cutts-
-cutts-
Lockup converters are designed to lock once you get to a predetermined RPM. This is to improve gas milage more than anything because a non-lockup converter will always slip to some extent.
Sorry to derail the conversation.
Lead Driver
Joined: May 2000
Posts: 9,236
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From: Senoia, GA
Originally Posted by tmyers
This is a common misconception, it does provide torque multiplication.
! i apologize for the mis-information! i will just stick to suspensions and tires! 
-cutts-
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Elder User
Joined: Feb 2004
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From: Stephenville, TX
Ya, sometime i will start on this, after i get my F-150 driving reliably (i lost the brakes last night.) I dont think the cummins swap will be that hard, the only really major thing it looks like i would need to do would be lower the front crossmember about 2 inches. For lack of a better name, i am going to call it the "really big orange truck" like a say, i want to start on this real soon, i will keep yall posted