Bump Stops

gmookher

Well-known member
Oct 30, 2004
5,201
0
Grand Canyon State
thanks to you both for those posts; I do want to do it right. Hence my not just slapping the shit on and going trailing!

I dont expect or want to retain the stock bump stop mount design, it was better on a d1, the d2 setup from the factory is weak. But I cant go fabbing it all up they way mongo can, i am not yet adept at welding, and just dont have the time to get that creative. I'd like to weld a re-enforcement plate on to the frame and ont the axle where the OE stuff goes, and replace the flimsy stock bumpstop. I'd like to still use the same location and the same concept.

Will I regret going with the Light racing type 'conventional' product instead of the king??
 

Mongo

Well-known member
Apr 19, 2004
5,731
2
59
both hydro bumps will work...stock location isn't weak either...
 

flyfisher11

Well-known member
May 25, 2005
8,676
2
61
Wolf Laurel NC
I just ordered a set for the rear so when they get here I will try to post pics of the install/fab. Most likely I will be setting it up like Musky did.

Cheers,

Mike
 

MUSKYMAN

Well-known member
Apr 19, 2004
8,277
0
OverBarrington IL
hey guys...sorry I havent chimmed in I really havent been watchin the boards...Life has been hectic.

The rear is where these things really shine in a disco. they have so much weight back there that having something that soaks it all up is awsome.

the way I have mine set up I dont loose any stuff at all but yet on straight compression stuffs like when your bouncing over whoopdy do's they soak up the stuff and dont toss or bounce you back off like a poly bump stop...just a soft little release .

the one thing people should be aware or is there is a audable click when they contact the axle housing, but this really isnt a issue IMHO as it is in no way jarring.

I may redo mine at some point and move them into the coils, this is a great place for them but it also is a much more complicated install.
 

flyfisher11

Well-known member
May 25, 2005
8,676
2
61
Wolf Laurel NC
MUSKYMAN said:
hey guys...sorry I havent chimmed in I really havent been watchin the boards...Life has been hectic.

The rear is where these things really shine in a disco. they have so much weight back there that having something that soaks it all up is awsome.

the way I have mine set up I dont loose any stuff at all but yet on straight compression stuffs like when your bouncing over whoopdy do's they soak up the stuff and dont toss or bounce you back off like a poly bump stop...just a soft little release .

the one thing people should be aware or is there is a audable click when they contact the axle housing, but this really isnt a issue IMHO as it is in no way jarring.

I may redo mine at some point and move them into the coils, this is a great place for them but it also is a much more complicated install.


Thanks Musky. Did you weld any 1/4" plate at the contact points or are you just using the stock points on the axle housing?

Cheers,

Mike
 

MUSKYMAN

Well-known member
Apr 19, 2004
8,277
0
OverBarrington IL
I am just using the stock contact area on the housing and since the crowned cap on the unit is cheap and easy to replace I think thats the best way to go.

Mine show no signs of wear at this point so I think they will be good for a good long time.

Thom
 

flyfisher11

Well-known member
May 25, 2005
8,676
2
61
Wolf Laurel NC
MUSKYMAN said:
I am just using the stock contact area on the housing and since the crowned cap on the unit is cheap and easy to replace I think thats the best way to go.

Mine show no signs of wear at this point so I think they will be good for a good long time.

Thom

I ordered the new delrin caps. They suggested with the weight of the DII this would probably be best.
 

JSQ

Well-known member
Apr 21, 2004
3,259
1
44
San Diego, CA
MUSKYMAN said:
in the rear?

the driver side is tight because of the exhaust but I havent had any issues

Yes, the rear.

I was going to mount them inboard on the frame.

I can't see where to put it on the passenger side. Too close to the diff.
 

Blue

Well-known member
Mar 26, 2004
10,071
881
AZ
These jounce shocks are some cool shit, especially if all it takes is welding the mount to your old bumpstop plate. I definitely could have used these on my old Disco...wish I had known there was an application like this for the Disco.
 

MUSKYMAN

Well-known member
Apr 19, 2004
8,277
0
OverBarrington IL
JSQ said:
Yes, the rear.

I was going to mount them inboard on the frame.

I can't see where to put it on the passenger side. Too close to the diff.

Ok my assumption is that you are running a lower lift then me and fully retained so you are thinking about room to fit the 1.5" travel version?

If thats the case I have thought about this and the best idea I think would be to run them inside the spring and use the mounting plate for the jounce shock as both the lower retainer and mount.

Then I would make a contact tower of sorts that also acts as the upper retainer. yes it would be a pain to install I bet just as most retainers are but if executed well would be a slick system.
 

Slappy

Well-known member
Jun 17, 2007
1,441
0
Santa Clara, CA
I want to know how the install goes on Mikes truck. If the mods are as easy as Muskys, then that's a pretty easy mod, not too involved. Good to know...


sorry for the edit, been wine tasting.
 

R_Lefebvre

Well-known member
Dec 10, 2007
942
0
Is there a less pricey solutiuon to extend my stock bumpstops with something less technically advanced, or is there really sufficient cost justification for such a fancy bump stop? I need to make the stock one about 2" taller and need it to be bigger and firmer for the heavier rear end with gear and bumper and fuel can/camping rack etc.

Has anybody investigate replacing the rubber bumpstops with foamy bumpstops? One of these style:

http://performanceshock.com/index.php?main_page=product_info&cPath=34&products_id=475&zenid=27669aa96a3a4114c2596b1fec1963bf

The initial rate is much softer than rubber blocks, but it ramps up exponentially as you compress them. They also have a huge amount of hysterisis which limits the energy the return to the system on rebound.

Actually, here's a webpage that discusses putting them on 7100's on a Nissan.

http://nissan.off-road.com/nissan/Suspension+Technical+Archives/Simply-Softer-EVS-Foam-Bumpstop-Review/ArticleStandard/Article/detail/483214?contextCategoryId=35005
 
D

D Chapman

Guest
JSQ said:
Yes, the rear.

I was going to mount them inboard on the frame.

I can't see where to put it on the passenger side. Too close to the diff.


Put them on the rear links.