Founders Performance New Bumpsteer Kit
 

Founders Performance manufactured this 3rd Gen F-Body Bump Steer kit with Aerospace T6511-6011 aluminum. The spherical rod end bodies are manufactured from heat treated chrome moly alloy steel and are then clear zinc plated for greater rust protection. The Ball is 52100 steel (Rc 56 MIN) and hard chrome plated rated with a static radial load rating of 18,000 lbs.

Features and Benefits:

• 5/8″-18 thread grade 8 bolt for superior strength (spindle drilling is required)
• Comes with an assortment of bumpsteer spacers for precise adjustments .650″, .350″, .273″, .185″, .115″, .090″, & .045″
  • Thicker Spacers are CNC machined .650″, .350″, .273″, .185″, .115″
  • Thinner spacers are stamped and heat treated to the same strength as a F436 washer so they don’t crack like others .090″ & .045″
• Corrects Bump steer, prevents uneven tire wear and unpredictable steering
• A necessary addition for lowered cars or added caster
• Hex adjustment in the center of the turnbuckle for easy adjustments
• Works in conjunction with other suspension modification
• Replaces factory outer tie rod ends with spherical rod ends for precise steering control
• Aerospace T6511-6011 aluminum
• Rod end bodies are constructed of heat treated chrome moly alloy steel and clear zinc coated for greater protection
• The ball in the body is 52100 steel and hard chrome plated
• Rod end liner is sintered bronze with PTFE impregnated for the strongest liner on the market. (not the standard PTFE or injected poly liner)

Important Notes:

Drilling the factory taper in the spindle to 5/8″ is required.

Re: Founders Performance New Bumpsteer Kit
 

Looks like another great product from Founders. Well done.

Re: Founders Performance New Bumpsteer Kit
 

I made a custom bump steer kit on my 92, but I use the Founders rod ends in my kit.
I really like those rod ends.
3 AutoX seasons and they have Zero play in them.
https://cimg5.ibsrv.net/gimg/www.thi...2f3fcd6bee.jpg

Re: Founders Performance New Bumpsteer Kit
 

So the "spindle drilling", is it simply that, drill it a little bigger, or do threads need to be tapped in afterwards?
I have several Founders parts on my third gen :)
Thanks!
Raf

Re: Founders Performance New Bumpsteer Kit
 

It's a through bolt so only drilling is required.

Re: Founders Performance New Bumpsteer Kit
 

I suspect there might be some misconception by people not familiar with this kind of product. Don't think that the spindle has to be drilled because Founders can't choose an appropriate bolt size to fit your spindle. The drilling process is to eliminate the taper in the spindle and transform it into a straight thru hole. Once you finish that the hole will be slightly oversized and you'll need the slightly larger bolt that Founders provides with the kit. :)

Re: Founders Performance New Bumpsteer Kit
 

About a month late... I've been leaning your products but I bought UMI's about a month ago when I needed them...

Re: Founders Performance New Bumpsteer Kit
 

I used a cheap vertical Mill to drill out/true up my spindle knuckle. In my case a cheap 5/8in reamer sealed the deal.
typically a 5/8 bolt is gonna be about 0.620-0.623in
So there is gonna be a very slight amount of play.
I don't think Founders is Providing a oversize bolt for that kit. It's probably just a normal 5/8 bolt.
That's fine, the tie rods will break long before you kill a grade 8 or 9 5/8 bolt.

https://cimg6.ibsrv.net/gimg/www.thi...9a2a8fc4eb.png
From my video,

Re: Founders Performance New Bumpsteer Kit
 

Re: Founders Performance New Bumpsteer Kit
 

I'd bet that you wouldn't even feel that slop on the street, but being anal-retentive I'm considering cutting the hole the next undersize and then using a boring head to open it exactly to the diameter of the bolt.

Re: Founders Performance New Bumpsteer Kit
 

Sub 0.005in is basically irrelevant on a car.
100% ok, I'd even go as far as saying 0.020inwould be fine.
​​​​​​Some 737 Max Wing Spars allow me to use a Hi-Loc that's about 0.002in smaller than a hole.
and that's on a damn wing structure that has to survive millions of hours of flight over 25yrs.

No one should worry about it