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Old 03/29/10, 09:48 PM   #16
Steve
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Quote:
Originally Posted by KyleQ View Post
As for balljoints - these axles were designed to survive under a diesel truck, people don't complain about having balljoints in a D44, so what is the big deal about 1 ton balljoints? The only real disadvantage is the lack of easy high-steer.
That's the only disadvantage? I'd argue that point. While those axles were designed to survive under a heavy truck, the ball joints and unit bearings were NOT designed for extreme rock crawling with 40" and bigger tires. Way different application.

Personally I wouldn't even consider a ball joint, unit bearing, D60 for my rig.

69 narrowed 8 inches, locked F&R, big tires, EFI, Atlas, winch, blah, blah, blah
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Old 03/30/10, 07:49 AM   #17
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Quote:
Originally Posted by Steve View Post
That's the only disadvantage? I'd argue that point. While those axles were designed to survive under a heavy truck, the ball joints and unit bearings were NOT designed for extreme rock crawling with 40" and bigger tires. Way different application.

Personally I wouldn't even consider a ball joint, unit bearing, D60 for my rig.
Unit bearings are fine - ever heard of Spidertrax? Ball-joints can handle the abuse as well - they survive under juiced up diesels on 38's pounding pavement, more-so under a lightweight crawler.

It may not work for you - but here is damn near no different in housing strength, unit bearings are easier to work with and BJ's hold up just fine. If you want piece of mind, replace them with the u-joints before you wheel it - they will outlast your worries.

BJ D60's are more affordable, are newer and won't require heavy rebuilds like the older axles do. The after market is there for these axles - take advantage of it.

74' Bronco - Mustang EFI 5.8 w/Explorer Serp - NP435 - AtlasII 3.8 - D60/D70 - PSC Full Hydro - 5.5" lift - Cage Arms, Coils and Shocks - F-O-A 2.5" Air Bumps - 43" TSL SX on H1 Double Beadlocks

74' Bronco Ranger - Street Build in Progress (351W/ZF5/NP205)
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Old 03/30/10, 10:17 AM   #18
Steve
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Quote:
Originally Posted by KyleQ View Post
Unit bearings are fine - ever heard of Spidertrax?
Yup, know Spidertrax well.

Two new D60 Spidertrax unit bearings - $740
Two new D60 Axle bearing/seal kits - $120

I'll respectfully agree to disagree.

69 narrowed 8 inches, locked F&R, big tires, EFI, Atlas, winch, blah, blah, blah
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Old 03/30/10, 10:56 AM   #19
DanWheeler
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4-linked front Bronco? holy Jealous Batman!!

I would love to hear more about the design, link points on the frame, axle mounts, etc.

awesome - nice work.

do you drive it on the highway?

69 Bronco / Explorer 5.0 EFI / 4R70W / Atlas 4:1 / 5.38 Gears / 3-Link D60 Front / Reid Knuckles / Yukon 4340 Shafts / Yukon lockouts / 16" Ballistic Hybrid Coilovers / Sterling 10.25 Rear on Leafs / 4-Wheel Discs / 1350 Rear Shaft / F&R ARBs / 41" Irok Radials / 100" WB

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Old 03/30/10, 02:01 PM   #20
carter2772
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Now watching the thread.... I think I want to change my front to a 4 link system.. HURRY UP!

I know its a J33p thing... And I DO understand!!!

'74 Stroked Eb / '68 Eb crawler
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Old 03/30/10, 02:32 PM   #21
KyleQ
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Quote:
Originally Posted by Steve View Post
Yup, know Spidertrax well.

Two new D60 Spidertrax unit bearings - $740
Two new D60 Axle bearing/seal kits - $120

I'll respectfully agree to disagree.
Just saying - Spidertrax uses them in their housings, with fabricated knuckles and housings. If a spindle was the hot shit, they would set it up with that.

The spidertrax stuff is factory F450 stuff for 35 spline, F350 is 30 spline. It's factory Ford gear that they modify for 8 on 6.5 -

The old axles are cheap in certain areas and more difficult in other - the newer axles are more or less of a trade off.


As for 4 linking the front - do it, use the link calculator and go to town. It's simple to 4 link - you want the most triangulation you can get with the most vertical separation you can afford to fit. It's that simple - there is nothing mysterious about it...

74' Bronco - Mustang EFI 5.8 w/Explorer Serp - NP435 - AtlasII 3.8 - D60/D70 - PSC Full Hydro - 5.5" lift - Cage Arms, Coils and Shocks - F-O-A 2.5" Air Bumps - 43" TSL SX on H1 Double Beadlocks

74' Bronco Ranger - Street Build in Progress (351W/ZF5/NP205)
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Old 03/30/10, 03:23 PM   #22
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I drove on the HWY at 65 plus nice and straight down the road . First time a drove it was an eye opener / butt cheek closer !! Lot more body roll than ever before , Had the tires at 5 psi from ice race'n back in Feb back at 20 psi made a big difference . Alot more flex than ever before . If I were going to stay with coil springs i would have made to axle 2 inches wider so the springs are angled outward more but that was not in the long term plan . Upper links are 1.25 dom 1/4 wall lower links are 1.25 1/4 wall sleeved with chomloly . The center mount does 2 thing's , It's a skid plate for the t case and link mount Plus if i ever go to 4 link in the rear that mounting area is already there .

Jay
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Old 03/30/10, 03:56 PM   #23
DanWheeler
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are your upper and lower links equal length? It looks like your uppers may be shorter than your lowers - how is your pinion angle when the axle is dropped?

I actually cant tell if your uppers or lowers are the triangulated ones... and then the the other set of links are just straight, right?

would you be able to get any more pics of where the links attach on the frame? I can see the triangulated links attaching to the crossmember but I cant see where the othe links attach.

thanks,
dan

69 Bronco / Explorer 5.0 EFI / 4R70W / Atlas 4:1 / 5.38 Gears / 3-Link D60 Front / Reid Knuckles / Yukon 4340 Shafts / Yukon lockouts / 16" Ballistic Hybrid Coilovers / Sterling 10.25 Rear on Leafs / 4-Wheel Discs / 1350 Rear Shaft / F&R ARBs / 41" Irok Radials / 100" WB

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Old 03/30/10, 04:01 PM   #24
rhinobuggie
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This is another Bronco done by the same guy that helped me build mine
http://s976.photobucket.com/albums/a...ar%204%20Link/
30 inches of travel in the rear
Jay
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Old 03/30/10, 04:32 PM   #25
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I added some pics of the build that may help answer some question
http://s976.photobucket.com/albums/a...build/?start=0

Upper links are 32 inch lower's are 41 inch
Jay
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Old 03/31/10, 08:41 AM   #26
KyleQ
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Twin Cities
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Nice pics -

74' Bronco - Mustang EFI 5.8 w/Explorer Serp - NP435 - AtlasII 3.8 - D60/D70 - PSC Full Hydro - 5.5" lift - Cage Arms, Coils and Shocks - F-O-A 2.5" Air Bumps - 43" TSL SX on H1 Double Beadlocks

74' Bronco Ranger - Street Build in Progress (351W/ZF5/NP205)
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Old 03/31/10, 09:26 AM   #27
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Quote:
Originally Posted by rhinobuggie View Post
I added some pics of the build that may help answer some question
http://s976.photobucket.com/albums/a...build/?start=0

Upper links are 32 inch lower's are 41 inch
Jay
I like the concept. I was originally going to go 3 link again, but I've had major problems keeping the wrap in check from only one upper link. Every 4 link setup I see has at least one drawback to what I have now, usually some form of the lower links being in the way of something.

70 Sport 302/T-18/D20-T, BB 31 spl LS 9" w/ yukons, MK VII rear disks, disk D44 w/ lockrite, 3.5" CAGE/Deaver lift, full length headers/duals, 78 col/steer box, stang HB
79 400/C6/205, mog 404's
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Old 03/31/10, 11:23 AM   #28
DanWheeler
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Quote:
Originally Posted by OX1 View Post
I like the concept. I was originally going to go 3 link again, but I've had major problems keeping the wrap in check from only one upper link. Every 4 link setup I see has at least one drawback to what I have now, usually some form of the lower links being in the way of something.
What kind of wrap issues have you had? Bent links or joint issues?

69 Bronco / Explorer 5.0 EFI / 4R70W / Atlas 4:1 / 5.38 Gears / 3-Link D60 Front / Reid Knuckles / Yukon 4340 Shafts / Yukon lockouts / 16" Ballistic Hybrid Coilovers / Sterling 10.25 Rear on Leafs / 4-Wheel Discs / 1350 Rear Shaft / F&R ARBs / 41" Irok Radials / 100" WB

Click here for pictures.
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Old 03/31/10, 02:56 PM   #29
rhinobuggie
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I had dual exhaust before , it had to go , just no ez way to route the link bars . My headers where 20 plus years old and the driverside pipe was run up over the T case . The Y pipe is now 2 1/4 inch and the tail pipe is 3
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Old 03/31/10, 03:21 PM   #30
OX1
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Originally Posted by DanWheeler View Post
What kind of wrap issues have you had? Bent links or joint issues?
PM sent, don't want to jack the guys thread too much

70 Sport 302/T-18/D20-T, BB 31 spl LS 9" w/ yukons, MK VII rear disks, disk D44 w/ lockrite, 3.5" CAGE/Deaver lift, full length headers/duals, 78 col/steer box, stang HB
79 400/C6/205, mog 404's
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