Bumpstops with Deavers

[Phil Howell]

As you know, the stock rear spring block has an integrated bumpstop pad that has the frame-mounted bumpstop hitting 2.5" above the axle tube. As Deaver springs delete the block, the bumpstop pad is also gone.

I was looking at the Ford OE bumpstop holders (cans) on the frame and thought they looked identical to the JK Wrangler's rear bumpstop mounts. It turned out they are! So, I had a couple of Teraflex JK rear bumpstop extensions that popped right in. The Ford OE bumpstop then popped easily into the extensions. This lowered the bumpstops to EXACTLY what's needed to work with the Deavers. The only difference is the bumpstop now hits the axle tube instead of the OE block pad.

 

[Phil Howell]

One other thing - I found the Deavers allow the axle to droop more than the stock leaf packs do. Brake lines are stretched and the Fox shocks are the new limiters. This isn't good for the shocks, so I've ordered a pair of MasterCraft limiting straps for the rear.

 

[bstoner59]

I'm not sure the point of changing the bump stop setup? SDHQ fabbed a higher pad on the axle too. It seems to me this will limit up travel? I hit the bump stop with the stock setup. Maybe I'm missing something...I had mine done at Deaver and they seem ok wig the stock bump stop setup. Please help me if I am missing something Phil.

 

[BigJ]

That's some GREAT info Phil. I've added a link to this thread to the KB article on installing these springs (see here: http://www.svtoffroad.com/showthread.php?2003-How-To-Remove-and-Replace-the-Raptor-Leaf-Springs) Thanks!

 

[Phil Howell]

I'm not sure the point of changing the bump stop setup? SDHQ fabbed a higher pad on the axle too. It seems to me this will limit up travel? I hit the bump stop with the stock setup. Maybe I'm missing something...I had mine done at Deaver and they seem ok wig the stock bump stop setup. Please help me if I am missing something Phil.

The stock block has a bumpstop pad 2.5" above the axle tube. By removing the block, the pad is also removed. Without the OE pad, we're getting 2.5" more uptravel than stock. I wanted to make sure my bumpstops were allowing the same uptravel as they did when stock. With 2.5" of additional uptravel, the shocks may be the limiting factor (just like they are when extended with the Deaver leaf packs). If this is so, it isn't ideal. SDHQ's welded, axle-mounted pads are very nice. The Teraflex extensions were an easy solution for someone like me who doesn't live near SDHQ. As you can see - you're getting 2.5" MORE uptravel than stock without the bumpstop extension, and not losing any travel (from stock) with the extension.

I know you really drive your Raptor and haven't seen any issues, but I have to address these things for readers that follow our lead.

 

[Phil Howell]

That's some GREAT info Phil. I've added a link to this thread to the KB article on installing these springs (see here: http://www.svtoffroad.com/showthread.php?2003-How-To-Remove-and-Replace-the-Raptor-Leaf-Springs) Thanks!

I'm happy to pass this along. I was pleasantly surprised to find that these Jeep JK Wrangler extensions plugged right into the Ford bumpstop cans.

 

[bstoner59]

Thanks Phil! I wasn't sure I understood but I get it now

 

[MarkT]

What a GREAT idea Phil! This is the most elegant "fix" to the bump stops with Deaver's I can imagine.:bow::bow::bow:

 

[Phil Howell]

What a GREAT idea Phil! This is the most elegant "fix" to the bump stops with Deaver's I can imagine.:bow::bow::bow:

Thanks, Mark!

 

[dnewman9]

Hi Phil,
I was just talking to Morris Hansen ( I work with him one office over) this morning about your truck and the Deaver swap.

I look forward to seeing some Raptor love in coming issues of 4wd&SU!
Dennis