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Old 09-08-2013, 01:53 PM   #1 (permalink)
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Question pls help to convert school bus to 4x4

Hi ineed help to convert my gmc 1987 45 set school bus
to 4x4

What front axle and transfer case iwill use

Tnx
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Old 09-08-2013, 02:26 PM   #2 (permalink)
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what you plan on doing with it, what hp you plan on ?

im thinking 2.5 ton rockwells or 5 tons with a divorced t case

Last edited by intwodeep; 09-08-2013 at 02:27 PM.
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Old 09-08-2013, 02:33 PM   #3 (permalink)
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What front axle and transfer case iwill use

Tnx
Dana 30 out of a jeep should work
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Old 09-08-2013, 03:21 PM   #4 (permalink)
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No Dana 30... What you need to make is a dana 35 steering axle press the dana 30 tubes into a Dana 35 center and you'd have way Moore strength in the center section..
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Old 09-08-2013, 03:31 PM   #5 (permalink)
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No Dana 30... What you need to make is a dana 35 steering axle press the dana 30 tubes into a Dana 35 center and you'd have way Moore strength in the center section..
BS ashole

he neds at least 2 dana 30s as tandum front axels like tatra truck on youtube

make sure rear front axle has less ratios so that front front axel pulls rear front axel along.
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Old 09-08-2013, 03:31 PM   #6 (permalink)
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BS ashole

he neds at least 2 dana 30s as tandum front axels like tatra truck on youtube

make sure rear front axle has less ratios so that front front axel pulls rear front axel along.
More danas more better.
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Old 09-08-2013, 04:43 PM   #7 (permalink)
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What a bunch of half-wits

He's clearly not English speaking, and looking for genuine advice.

Web wheeling getting stressful, fellas?
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Old 09-08-2013, 05:10 PM   #8 (permalink)
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There are a lot of used utility trucks around in truck scrap yards. Most have a divorced transfer case, and 9-10,000lb froont ends. Rockwell, Marvin., etc. If you already have a leaf spring front, then it will be realtively easy. The wheel patterns will fit also. Watch utility auctions. Many go for below $5k, and you can strip what you need.
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Old 09-08-2013, 05:57 PM   #9 (permalink)
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Get ahold of Rocky on here, his shop has done a bunch of 4x4 conversions on school buses.
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Old 09-08-2013, 07:47 PM   #10 (permalink)
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He's clearly not English speaking, and looking for genuine advice.
From his sig:

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Old 09-08-2013, 08:11 PM   #11 (permalink)
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More danas more better.
I don't know why, but this got me!
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Old 09-08-2013, 08:30 PM   #12 (permalink)
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From his sig:

Hmm I see your point... lol

However I'm still assuming he's from Qatar (Arab writing on the wall), so still stand by my point of ESL.

As to the genuine advice part... I dunno
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Old 09-08-2013, 08:34 PM   #13 (permalink)
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what you plan on doing with it, what hp you plan on ?

im thinking 2.5 ton rockwells or 5 tons with a divorced t case
My plan to drive the bus on sand and desert

Tnx man
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Old 09-08-2013, 08:35 PM   #14 (permalink)
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what you plan on doing with it, what hp you plan on ?

im thinking 2.5 ton rockwells or 5 tons with a divorced t case
any photo or info about that

Tnx
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Old 09-08-2013, 08:36 PM   #15 (permalink)
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Info pls
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Old 09-08-2013, 08:37 PM   #16 (permalink)
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What a bunch of half-wits

He's clearly not English speaking, and looking for genuine advice.

Web wheeling getting stressful, fellas?
Try to help or go away ..
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Old 09-08-2013, 08:39 PM   #17 (permalink)
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There are a lot of used utility trucks around in truck scrap yards. Most have a divorced transfer case, and 9-10,000lb froont ends. Rockwell, Marvin., etc. If you already have a leaf spring front, then it will be realtively easy. The wheel patterns will fit also. Watch utility auctions. Many go for below $5k, and you can strip what you need.
I dont thenk I will fined so ineed to order from usa any info

Tnx man
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Old 09-08-2013, 08:49 PM   #18 (permalink)
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Pls guys im here for help so no need to talk about arab or english

tnx
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Old 09-08-2013, 10:06 PM   #19 (permalink)
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Try to help or go away ..
I was trying to help asshat.

Get a wrecked 4WD truck and swap the bits.
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Old 09-08-2013, 10:28 PM   #20 (permalink)
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I don't know why, but this got me!
Two 30s is a 60, and for less than a third the cost!
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Old 09-08-2013, 11:01 PM   #21 (permalink)
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Try to help or go away ..
He is one of the few trying to help you. Don't be a pinhead.

My personal suggestion would be a d28 ttb with a Dana 300 transfer case. You may need a high misalignment front driveshaft.
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Old 09-09-2013, 01:22 AM   #22 (permalink)
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Haha! MR LR was trying to help keep the jackals here in line.

Try Boyce Equipment. Their prices aren't the best, but they are a real business with a huge warehouse and inventory. They can probably set you up with the right axle, and arrange shipping.
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Old 09-09-2013, 01:48 AM   #23 (permalink)
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Rockwells would probably be the most ideal axles, however you may be able to source axles locally from a Unimog, Volvo, or MAN 4x4 truck with less hassel.

For the transfer case something from a duece and a half (M35) will be your best bet. I think they came with a rockwell transfer case. It is possible that they have one with the same engine your bus has. You could possibly need a transmission along with the transfer case.
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