rear axles

[lifeinthesouth]

For the swap from 8.8 to a 9"... i haven't had a chance to crawl under and look
If the 9" is from a bronco is there any difference in driveshaft connection/components... does it bolt right up?

[philofab]

For the swap from 8.8 to a 9"... i haven't had a chance to crawl under and look
If the 9" is from a bronco is there any difference in driveshaft connection/components... does it bolt right up?

Same U-joint but the flange yoke needs to be removed from the drive shaft. The yoke is a little bit farther back on a 9" and some trucks may require a longer driveline.

[BDKW1]

One thing you guys are missing in all this swapping madness. Go weigh a 9" then go weigh an 8.8/14 bolt/Dana 50 or anything else with a large cast center section........ Unsprung weight is your enemy.

I'm still sad that the Portal Tech guys went under. I was really looking forward to an aluminum 14B drop out in the long Bronco...........

Jayson up at Tube Works was all over those and making housings for them and billet caps. I need to talk him into picking up the pieces and starting to produce them..........

[David Kennedy]

I weighed my '96 8.8-inch Ford, it tipped the scales at 200 lbs. I meant to weigh the 14-bolt, but I ran out of time....

[philofab]

Taken from Car Craft website

wo/brakes w/brakes

• 12-bolt 171 210
  Strange S60 191 230
  Currie 9-inch 174 238

http://www.carcraft.com/techarticles/cc ... index.html


Anyone have weights of a sterling and 14 bolt?

[Deleted Account]

One thing you guys are missing in all this swapping madness. Go weigh a 9" then go weigh an 8.8/14 bolt/Dana 50 or anything else with a large cast center section........ Unsprung weight is your enemy.

I'm still sad that the Portal Tech guys went under. I was really looking forward to an aluminum 14B drop out in the long Bronco...........

Jayson up at Tube Works was all over those and making housings for them and billet caps. I need to talk him into picking up the pieces and starting to produce them..........

x2 I really wanted to try one of the super14s in my race truck. last time i talked to tubeworks he wanted like 8k for just the third member. a bit steep for me.

[Dust]

Anyone have weights of a sterling and 14 bolt?

Wiki says 550#, which I can believe having tossed a few around over the years.
We weighed one ready to run at 370~something but that was after the Disk conversion and the drums weighed in at near 70# each I think; the disk conversion takes near 200# off depending on the axle. I have one complete and one with the disks but currently no scale that will take that king of weight.

[Dust]

http://www.race-dezert.com/forum/showth ... ll-floater

[philofab]

We need to talk Yikes into weighing his Sterling vs. my 9". I don't see a whole lot of weight difference between them.

Everyone seems to really like 14bff rear ends... are they really that strong with a 30 spline axle?

[Dust]

We need to talk Yikes into weighing his Sterling vs. my 9". I don't see a whole lot of weight difference between them.

Everyone seems to really like 14bff rear ends... are they really that strong with a 30 spline axle?

My simple answer is yes. FF, 1.35 Dia shaft, 3 pinion bearings... Inexpensive.

Someday I would really like to have a correlation between my "Trail/High-speed Play" and the Desert/PreRunning, never going to happen quantifiablly(sp) I understand. I'll bet that the forces I deal with are far more brutal, where the pure PreRunner see's far lower forces at higher rates... For example the D44TTB, is often free because it is just a bendable grenade waiting to happen when used as a drive axle, and the D44 solid is regularly SAS'd in to the TTB's home and withstands the same driver's abuse (& more) without failure as a drive axle. I obviously understand the difference in application and yet that darn Black 2ndGen Bronco seems to fly in the face of conventional wisdom at the C3-level.
I know personally of more then one 14B in a "Fullsize" rig that is twisting 42" and larger tires in the rocks being fed by a Big Block or healthy small block, several that are spinning 40" tires behind healthy Cummins deadcells with no problems and running them directly out of the Wreckingyard, just check things over and oil em up.
DO they break? What doesn't? Heard of a guy broke one with a 1.3L Suzuki once, and know guys that cant hurt em with 500HP and a 250-shot...
For me the issue is weight and in my case I'll live with way more UnSpr-weight if that means I get from A to B and Back. There is just no way I would spend money on attempting to get an 8.8 to live under a full size truck! In my 4.0L Ranger? Certainly I polished the turd to a dull bling , but in a Bronco, nope not a chance! Then there is my 75, it is staying Solid axles and heavy ones at that (D60/14B), I likely will not go as fast, then again if I am secure in the strength of the parts I just might be able to push harder where I can, and that is surviving to cross the finish-line... the fastest way around the track is to know how to use the brakes. And there is that sexy Black Bronco that says unsprung weight can haul...
~Way enough from me:lol:

[ChaseTruck754]

Ugh - back and forth on my 9" vs. corp 14 debate here. I have even thought about turning the thing into an 8 lug so I could swap some parts with the crew cab if need be and then also share some spares. Problem with that is the tires for 16" rims cost more and I just sold my 8 spare 8 lug alcoas...

Man I need to make up my mind so I can move forward.

What seems to be holding me up on the 14b for now is the fact that it looks like I'll have to machine the wheel centers larger on all the stock, 10 hole alcoas I have. My 5 spoke ones have a 4.25" center bore, whereas the stock ones are more like 3.35". I'm pretty damned sure the center of the 14b hub can;t be machined down THAT small, and I have 8+ rims to machine if that is the case.

I also have a 14b FF here I could weight if I had a scale big enough.

[philofab]

I also have a 14b FF here I could weight if I had a scale big enough.

I bet someone in that complex you in has a scale that would work. I think it would be neat to know exactly what the axles weigh for comparison.

[ChaseTruck754]

I'm sure somebody does, but I only know 2 other guys their and I'm pretty sure neither has a scale. Well, I know 1 doesn't.

[BajaBronco13]

Philo,

You still have access to those Econoline big bearing 9" rearends? Let me know. I may go that route on my white Bronco.

Chris

[tcm glx]

Philo,

You still have access to those Econoline big bearing 9" rearends? Let me know. I may go that route on my white Bronco.

Chris

X 2

[Nick]

Philo,

You still have access to those Econoline big bearing 9" rearends? Let me know. I may go that route on my white Bronco.

Chris

X 2

Tony, unless you are going wider in the front, you will need one from a bronco/f150.

[philofab]

The Econoline axle is 68" WMS to WMS.
Stock F150/Bronco axle is 65" WMS to WMS.

Aftermarket housings are the way to go.

[tcm glx]

Philo,

You still have access to those Econoline big bearing 9" rearends? Let me know. I may go that route on my white Bronco.

Chris

X 2

Tony, unless you are going wider in the front, you will need one from a bronco/f150.

[BajaBronco13]

The Econoline axle is 68" WMS to WMS.
Stock F150/Bronco axle is 65" WMS to WMS.

Aftermarket housings are the way to go.

Trying to keep it low budget Philo. For the white bronco I don't want to go with an aftermarket rear housing. I'd take the econoline and truss it and call it done. I know it has it's limitation but don't want to spend another $700 to $900 on a housing.

Chris

[philofab]

Trying to keep it low budget Philo. For the white bronco I don't want to go with an aftermarket rear housing. I'd take the econoline and truss it and call it done. I know it has it's limitation but don't want to spend another $700 to $900 on a housing.

Chris

I'll keep a lookout for Econoline housings/axle, however the cheapest I'll be able to get a hold of one now is about $200.

I can build a Ruff Stuff axle with new style Torino big bearings ends and leaf spring pads for about $650. Any width up to about 75" wms to wms. I don't make any money at this price but I'd do it for my buddies.