35's and Greg Davis bumper?

bmxer06pa

Well-known member
Mar 8, 2010
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I am currently collecting parts to put some 35's on my 2000 D2. Have any of you guys used 35's with a Greg Davis rear bumper? I know I will have to trim my wheel wells and possibly my sliders, but I really don't want to modify my rear bumper. Any ideas if they will fit?
 

pschuler

Well-known member
Feb 7, 2006
616
3
MD
What is your suspension set up? I was running 34x10.50 TSL's with a 3" RTE lift and a GD rear. I would be more concerned with the front tires rubbing at full stuff when turning.
 

Mongo

Well-known member
Apr 19, 2004
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Don't have to trim the wheel wells just the sliders the bumper will be fine
 

KyleT

Well-known member
Mar 28, 2007
6,059
8
39
Fort Worth, TEXAS
i had to trim the fenders and still rub pretty heavily on the wheel wells.

also need to trim my RTE front bumper as it hits hard at full stuff with the tires straight.
 

KyleT

Well-known member
Mar 28, 2007
6,059
8
39
Fort Worth, TEXAS
Mongo said:
Hmm...front, rear or both
front more than the rear, but there is some in the rear. bumps are probably not tall enough. or maybe too much flex. :cool: I need to hammer down the pinch seem on the front foot box.
 

bmxer06pa

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Mar 8, 2010
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So I am looking at trimming the front bumper (possibly), the sliders, and wheel arches, but my rear bumper will be ok?
Are flexi flares the way to go for the cleanest looking install? I can't hack my truck up too much if I want to keep the old lady happy
 

bmxer06pa

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Mar 8, 2010
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I am in need up of new bump stops any ways. I am set up for more down travel (which isn't much on a d2) than up travel and I need some bigger bumps to save my shocks
 

seventyfive

Well-known member
Jan 3, 2010
4,280
100
over there
Why doesn't a D2 have a lot of down travel?

to give you a heads up, you will need 6" bumps in the front and 8" in the rear. Or you can have targets made for the axles and use 4" pro thanes. You are not going to be able to bolt the bumps on the frame without a lot of work. As far as I know there is a prototype set of 4" D2 bump stops somewhere in New York.
OR you can just weld some DOM to the frames and use some stud style bumps on the ends.

The measurements I give are based on 36" tires, and at full stuff they are a hair from touching the flares.

I'm curious what you mean about the D2 not having a lot of down travel.
 

Mongo

Well-known member
Apr 19, 2004
5,731
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I'm withya on that Mike, I had to retain the rear springs on mine to keep them from unseating (pre-axle swap0
 

bmxer06pa

Well-known member
Mar 8, 2010
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Maybe I have done something wrong. I have 12in 7100s front and back, 3in rovertym springs, robertym radius arms, and their extended watts. I have cones and retainers because I assumed my springs would just fall out. After putting my new setup in I went to the cove for a weekend. I hit the rti ramp after the trails and neither my front nor my rear springs came off my spring perches. I hit the ramp in drive and reverse. Maybe the cones just did their jobs on the trail and I never noticed, but I assumed on the ramp would exaggerate anything I could hit on the trail. What am I missing?
 

seventyfive

Well-known member
Jan 3, 2010
4,280
100
over there
I've brought this up before, but it fell on deaf ears. Your extended watts linkage does nothing more than allow taller springs.
The last time I brought that up it was argued that the radius arms are what limit the flex, which is true only due to the fact that rover used a watts link to center the axle. In fact riding behind Justin's P38 I noticed the panhard rear (on the P38) allows more flex than a D2. You'll see a lot of hot rod and muscle car guys using a watts because it is a very easy solution to keeping the rear axle parallel to the body and it is compact.

With radius arms front and rear and adding a watts link you are creating a more stable on road behavior, which allows the traction control and abs to work more effectively...the downside is when you design a live axle truck to handle better on road i.e. more stable, it makes less flexible off road.

The next time you get a chance to put it on a ramp, go up until the driver rear unloads. Have someone take a picture of the watts, you'll see that it is completely bound.

With watts
http://smg.photobucket.com/albums/v...ew&current=DSC_0656-1.jpg&mediafilter=noflash

Without watts
http://smg.photobucket.com/albums/v.../seventyfive/?action=view&current=Image-6.jpg

Granted its not the exact same line, but without the watts and radius arms, the tires do not come off the ground, I picked several lines to try to get a tire unloaded but they wouldn't.