Suspension & Brakes Springs | Shocks | Handling | Rotors

Bump stop?

Thread Tools
 
Search this Thread
 
Old 12-10-2014, 03:34 PM
  #1  
TECH Apprentice
Thread Starter
 
Skeet Skeet's Avatar
 
Join Date: Jan 2007
Location: Hudson florida
Posts: 359
Likes: 0
Received 0 Likes on 0 Posts

Default Bump stop?

So I just finished pulling my rearend out of my 99 z28 and saw that my bump stops are destroyed and falling apart. Would you recommend going with the factory style or polyurethane? I think the poly will last longer but I've heard it might be to hard and can cause traction issues. Any truth to this and what would y'all recommend?
Old 12-10-2014, 11:03 PM
  #2  
TECH Fanatic
iTrader: (45)
 
Undertow74's Avatar
 
Join Date: Oct 2007
Location: Washington
Posts: 1,271
Received 12 Likes on 11 Posts
LS1Tech 10 Year
Default

Bump stops will have nothing to do with traction issues. Their only function is to stop the axle from bottoming out against the frame if you hit a massive pothole. Jeep poly ones will work just fine, cut the ear off the factory mount they bolt up just fine. Less than 20min job total.
Old 12-12-2014, 03:15 PM
  #3  
TECH Apprentice
Thread Starter
 
Skeet Skeet's Avatar
 
Join Date: Jan 2007
Location: Hudson florida
Posts: 359
Likes: 0
Received 0 Likes on 0 Posts

Default

I was just told that if you get the poly ones they will be to stiff and if you bottom out the shock it can cause traction issues. I didn't know if there was any truth to that.
Old 12-12-2014, 03:35 PM
  #4  
TECH Enthusiast
iTrader: (2)
 
Corvett z07's Avatar
 
Join Date: Aug 2014
Location: Ft. Wayne, IN
Posts: 549
Likes: 0
Received 0 Likes on 0 Posts
Default

Just making sure you know, the bump stops only job to do is to stop suspension travel before something drastic happens; ie: the shock bottoming out because the shock can travel too far without bump stops. That's why bump stops are there, to limit how far the suspension travels and to stop if from traveling after a certain point.

Dorman does apparently make direct replacement bump stops, they are made of foam and expensive. As far as I know no one has tried them out to give a review on how well they hold up. Poly will be stiffer, but you can drill holes in the base of the bump stop to soften the impact. Poly would be ideal as it would hold longer than foam and it's cheaper but you'll have to add washers or grind off the metal lip for it to seat correctly.
Old 12-14-2014, 11:29 AM
  #5  
TECH Addict
iTrader: (2)
 
libertyforall1776's Avatar
 
Join Date: May 2007
Location: IL
Posts: 2,129
Likes: 0
Received 5 Likes on 5 Posts

Default

The OEM style will be a smoother transition onto the bumpstops, poly will be more jarring. Therefore I went w/OEM for my Camaros.

Last edited by libertyforall1776; 12-15-2014 at 09:03 PM.
Old 12-14-2014, 12:44 PM
  #6  
TECH Veteran
iTrader: (4)
 
FirstYrLS1Z's Avatar
 
Join Date: Aug 2004
Location: Euclid,Ohio
Posts: 4,176
Received 136 Likes on 120 Posts
LS1Tech 20 Year Member
Default

https://ls1tech.com/forums/suspensio...ump-stops.html

the Jeep bump stops I used,instead of metal cutting/trimming I used washers to space them away from frame.
Old 12-16-2014, 04:40 PM
  #7  
TECH Senior Member
iTrader: (35)
 
99Bluz28's Avatar
 
Join Date: Nov 2007
Location: C. V., Kalifornia
Posts: 9,705
Likes: 0
Received 11 Likes on 11 Posts
Default

FYI, the ES/Prothane jeep bump stops are stiffer so yes they are more likely to upset the handling, but they're right about 1/2" shorter than the factory bumpstops so you'll have a little more compression travel before you hit them. For the price and availability compared to soft OEM bump stops, they're a good option.
Old 12-17-2014, 06:53 PM
  #8  
12 Second Club
iTrader: (18)
 
z-maro's Avatar
 
Join Date: Jun 2011
Location: MN
Posts: 1,287
Received 22 Likes on 18 Posts

Default

Another option are 3rd gen bump stops. I got a set at the local salvage yard for dirt cheap.
Old 12-22-2014, 12:35 AM
  #9  
TECH Apprentice
Thread Starter
 
Skeet Skeet's Avatar
 
Join Date: Jan 2007
Location: Hudson florida
Posts: 359
Likes: 0
Received 0 Likes on 0 Posts

Default

I didn't think about trying a salvage yard. I'll have to call them tomorrow and try that. Thanks for the idea.



Quick Reply: Bump stop?



All times are GMT -5. The time now is 01:53 AM.