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by **Begle1** » Tue Apr 10, 2007 3:20 pm

Being as tired of my rear brakes as I am, and needing limited slip badly, with perhaps some space for bigger tires, and always in the mood for something with more beef...

What kind of axle should I be looking for?

Would an axle with factory limited slip be good, or would I be better off holding out for an aftermarket locker unit? I would imagine that SRW D80's are all the same width?

Are D-80's bolt-in?
Did anything have the 3.40's in them stock?
Would I be better off with a Rockwell or something different?

by **Philip** » Thu Apr 12, 2007 2:34 pm

Going to a D80 with no more mods than you are showing in your sig I don't think would be worth the expense. As far as brakes. If you go with a D80 with drum brakes your not getting anything better than what you have. If you go with a D80 and disks. Then you need a bigger master cylinder and the hydro boost setup. Plus the disks will not work with 16" rims. That means you need to change over to 17's.

The after market disks for a D70 will work on a SRW. But the after market setup is not a finished kit. You need to do some work to it. It also doesn't address the need for a bigger master cylinder to supply more fluid for the bigger pistons the disks use. I had a friend that used a after market kit a few years ago. He towed heavy at times. So he switched to disks. After running that setup for a couple of years he switched back to drums. It gave him better pedal feel and more brakeing effort.

by **KTA** » Thu Apr 12, 2007 2:42 pm

Get an s110 out of a Ford, they are a good axle with good brakes, but you have to modify the spring perches to get it to fit because they are the wrong spacing and width.

by **dpuckett** » Sun Apr 15, 2007 7:59 pm

You'll just have to measure the axles on your truck. My 90 had a 42-1/2" spacing for the springs; the 92 has a 43-1/2" spacing. A D80 will be a direct with the exceptrion of u-bolt mounting- you go around a 4" tube with a D80, vs the 3-1/2" tube on a 70.

My braking improved greatly with the bigger shoes on the back. They feel like they should almost. Still need to bypass the RWAL, but stopping behind that bluehair that pulled out and stopped is no longer a sphincter pucker power moment. I went from a 12x3 to a 13x3.5. QUite a bit more stopping surface.

by **Rebel Ram** » Mon Apr 16, 2007 5:30 pm

KTA wrote:Get an s110 out of a Ford, they are a good axle with good brakes, but you have to modify the spring perches to get it to fit because they are the wrong spacing and width.

That I think is what I have in "BigUgly" right now. Or at least a ford D70. I found a powerlock carrier from a ford and got it just because, a while back. Then when my stock 70 went south I got a ford 1 ton 70 with an open diff and put the powerlock in that. Moved the spring blocks and Viola. Dually axle with single rims.

by **KTA** » Mon Apr 16, 2007 6:26 pm

No you would know a s110, it makes a Dana70HD look like a jeep axle.

by **CAJUN 93** » Tue Apr 17, 2007 7:57 am

that s110 is supposed to be coming in the new dodge 4500-5500 series. it has to be strong. has 4 bolts holding the lh carrier bearing. gotta be giving up some horses to turn that monster.

kta, what kinda pricing are you seeing on used (salvage) s110's. with dana 80's going for $1500 and up, i cant imagine a s110 being affordable.

by **KTA** » Tue Apr 17, 2007 2:30 pm

Usually around a grand. Dana80's are pricey because pickup guys have them and destroy them. I can buy 38000lb tandems with air ride suspensions for less than most yards want for an 80 because of demand.

by **PToombs** » Wed Apr 18, 2007 4:44 pm

I think your truck will look funny with 38k tandems! I don't think you'll be over on the scales though! :lol:

by **KTA** » Wed Apr 18, 2007 5:16 pm

Yeah but then I can run 22" wheels on it without adapters!!

by **dazedandconfused** » Thu Apr 19, 2007 1:47 pm

Philip wrote:. Plus the disks will not work with 16" rims. That means you need to change over to 17's.

The Dana 80's with rear disc work with 16" wheels. That is what My dually has under it factory.

by **Begle1** » Sat Apr 21, 2007 5:21 pm

So what did these S110's come in? They had high-range rear ends, disks and limited slip available?

What do you think a perfectly functional D71 with an open 3.07 and new drums would be worth, if I were to try to sell it by myself?

by **dpuckett** » Mon Apr 23, 2007 8:57 pm

I'd guess the S110s are from the F450/550 trucks.

That D71 is nearly worthless. Better let me save you the hassle and take it off your hands for the cost of fuel. :twisted:

:wink: Seriously, I have had guys offer to sell them to me from $250 to $1500; just depends on who you're asking and what they think their stuff is worth.

Daniel

by **MikeThomas** » Fri May 04, 2007 11:49 pm

I scored my dana 80 for $200... wasnt sure it it was a good deal but hey :wink:

...Trying to decide if I want to go through the trouble of putting it in or not, but not pulling the axles to service brakes would be nice!

by **CAJUN 93** » Sat May 05, 2007 6:39 am

MikeThomas wrote:I scored my dana 80 for $200... wasnt sure it it was a good deal but hey ...Trying to decide if I want to go through the trouble of putting it in or not, but not pulling the axles to service brakes would be nice!

i'll double your money on that right now :lol:

. really though, you stole that one. good deal

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Finding a junkyard D80, or something else?

Finding a junkyard D80, or something else?

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