Duff 11 leaf springs

[usahockey]

Does anyone run these right now? Thinking about running the 3.5". Just wondering how they hold up (any sagging, how's the ride). I think they are made by national?

Thanks in advance,
Jason

 

[unregistered]

I like mine fine, but they are the only ones I have tried besides stock. No sagging ,not yet anyway. This is michael084, can't log in.

 

[usahockey]

Thanks Michael. How long have you had them?

-Jason

 

[77BroncoWag]

had mine on 2 years measured them again and still no sag ;D

 

[nvrstuk]

I've been running them for 4 years. No sag, excellent flex although not as much flex as Nationals. They will not bend past a straight line between leaf hangers.That to me is just fine since I'm still running 43" up a 30 deg ramp. I'd rather not have my springs sag in a couple years and it does help with body lean/roll. Body roll is noticeably less on a side by side (as in two Broncos side by side on top of a Subaru) comparison next to Nat. springs.

 

[SaddleUp]

I've been running them for 4 years. No sag, excellent flex although not as much flex as Nationals. They will not bend past a straight line between leaf hangers.That to me is just fine since I'm still running 43" up a 30 deg ramp. I'd rather not have my springs sag in a couple years and it does help with body lean/roll. Body roll is noticeably less on a side by side (as in two Broncos side by side on top of a Subaru) comparison next to Nat. springs.

Do the Nationals start sagging? I replaced my front springs with a pair of Cage coils Friday and I'm looking at the rear springs next. I recall you saying that the Nationals flexed better when we were at SOB but I don't want them if they are going to sag on me after a year or two. I'm also thinking about waiting to see what Jim Cole comes up with. He said they were about 8 weeks out. BTW, Is that 43 with the pin out?

 

[Unregistered]

For quite a while it seemed like all the Nat. rear springs sagged or settled. Lately they haven't had as much problem but I still hear of a few that have sagging problems-not as common a complaint. IMO I'd still be concerned if I was looking at buying them-my opinion. If you know a product has had a major problem in the past you just want to be sure it's been corrected 100% before investing time and $$. I know of one guy who has the 11pk Duff rear and his sits too high compared to mine sitting side by side with exact same springs front and rear.

Jim is sharp and I would guess his (Cage) new springs would be excellent. Course they would be brand new and you would be the guinea pig... :-(

Unpinned yes. about 6 more than pinned.

 

[77BroncoWag]

11pk Duff rear and his sits too high

does he have a rear tire carrier and a hardtop?

 

[SaddleUp]

For quite a while it seemed like all the Nat. rear springs sagged or settled. Lately they haven't had as much problem but I still hear of a few that have sagging problems-not as common a complaint. IMO I'd still be concerned if I was looking at buying them-my opinion. If you know a product has had a major problem in the past you just want to be sure it's been corrected 100% before investing time and $$. I know of one guy who has the 11pk Duff rear and his sits too high compared to mine sitting side by side with exact same springs front and rear.

Jim is sharp and I would guess his (Cage) new springs would be excellent. Course they would be brand new and you would be the guinea pig... :-(

Unpinned yes. about 6 more than pinned.

For Jim I don't mind being a guinea pig to some extent. We discussed quite a bit when I was out there friday and even found out he worked in the same off road shop several years ago as I did. I think his products will be an asset to the EB community so I don't mind some trial and error if it will help support him.

 

[jpoore]

I'm in the same boat. Just put the CAGE coils in front, blocks in the back, and RS5000s.

The CAGE rears are due (I think) the end of Sept. Perhaps there will be a mass buy? Plus they are supposed to be developing shocks as well. I hate these 5000s!!!!


JP

 

[SaddleUp]

I'm in the same boat. Just put the CAGE coils in front, blocks in the back, and RS5000s.

The CAGE rears are due (I think) the end of Sept. Perhaps there will be a mass buy? Plus they are supposed to be developing shocks as well. I hate these 5000s!!!!


JP

He mentioned shocks and shock hoops were something else we discussed. I won't get blocks anywhere near mine again. (I had 1" blocks on it at one time) Too big of a headache to pull the blocks back out in the campsite when the rear end starts wrapping up because they started collapsing. (Even with Duff traction bars)

BTW, Are you running dual 5000's? If so then try pulling one off. Mine actually rides fairly well with singles at each corner. (A lot better than it did with the Duff 70/30 duals anyway)

 

[jpoore]

Nope, single 5000's at each corner.

Yeah, I want to ditch the blocks ASAP however I needed to get it up to get the new driveshafts and all the others nessessary stuff. I pulled out the overload springs, so axle wrap should be pretty bad.

JP

 

[usahockey]

Who makes Duff's 11-leafs? For some reason I thought it was National Springs.

 

[75]

what does pinned or unpinned mean? thanks~bill

 

[SaddleUp]

what does pinned or unpinned mean? thanks~bill

Brian (I think I got the name right) has a wristed radius arm. Pinned is with the arm pinned solid. Unpinned is with it pulled to allow the radius arm to flex more. I watched him on the ramp at SOB which was pretty impressive and then stopped by his camp site for a few minutes. It was impressive enough that I'm rethinking how I have mine set up.

So far I've changed to the Cage coils (In addition to the extended arms I built) which are quite impressive off road. I went out yesterday and played in a pile of rocks up in the mountain that I always stayed away from before. Now I just need to get some skid plates under there so I can take on the rock garden up above. Watched 2 rigs come out of there broke and one was still down at the bottom when we left. A Wrangler with busted gears in the front D44, A Suzuki Sammy that was laid on it's side and busted a U-Joint, and a caged Scout II that took out a u-joint, pinion yoke, rag joint, and ps hoses by the time we left. It was still down at the bottom when we left and they had run into Tillamook to get parts and a trailer. They were looking at a very long night (A couple of hours just driving through the rocks after it was fixed) just to get it out to where they could put it on a trailer though.

 

[nvrstuk]

Bronco lean-driveline length

I'm running a 24 1/2" long rear driveline with my ZF/203/D20 drivetrain. My rear driveline swapped into the front position after the gearbox changes. No problems with the drivetrain other than twisting 3 teeth off of low range on my D20 on my first day of my trip to Moab last year. Torque converter might help reduce the stress on components...I'll go to auto to help relieve that problem if I keep twisting parts up.

You'll love the auto with the Klune behind it. Compression braking downhill is what is missing for the autos without the gear doubler.

 

[nvrstuk]

Carnage

Yup, the name is right!
That sounds like a heck of a rock garden with all the broken down rigs there...course they were Sammies and Scouts!! lol

So the Cage springs are treating ya right? Good to hear. I'm sure since Jim is engineering those things that they will be the next step up in performance from Duff's.

nvrstuk

 

[nvrstuk]

"newbie" ??

What's up with "newbie" next to my name? Been following this list for years and years, just don't post.

Out to the shop!

 

[77BroncoWag]

the more you post the better your rank

 

[nvrstuk]

Thanks for info
Meaning the more you post the admin figures you know what you're saying? Ha, what a joke! So if you post 200 times in a weekend you're an EB expert?

...no offense to anyone. gotta be a better way