From our research and also being around before the start of the factory 4 link cars. We have found that none of the other companies listed above will custom build a lower arm. There are a few in the $1000 range. Unfortunately most companies don't even know the real benefits of a true tall spindle and what modern cars are using for caster and camber curves. Call them and ask for the LBJ to be moved forward a 1/2". If the parts weren't made over seas, they could simply build to your specs, (as we do). The owners son here at the shop, (currently working in another building), builds custom lower arms for his race teams. These are very limited runs and not any less expensive than the other companies. One draw back, (for some guys) is that they are coilover only setups.
Its fairly simple to take a factory lower arm and move the LBJ forward where needed. They are quite a strong piece.
Agreed.
Looking into your "Game-Changer" set-up sent me down the rabbit hole researching things a little deeper. In the end, I currently couldn't justify your tall spindle set-up vs tall BJ's on a stock height spindle because I would be spending money twice. I'm not building a race car. Nor am I building an OUSCI hopeful. I am trying to improve the geometry of what I have within a budget.
I already had SPC upper arms & tall BJ's from a previous project. I could sell them @ a loss or use them.
Already have springs. I know you mentioned they had too much rate in a discussion but I've used them before & was comfortable keeping them vs. again trying to sell & buy different.
Already had stock spindles w/stock brakes. Not ready from an ROI angle to step up to big brakes & their required big wheels either....
It's easy enough to get better camber gain using the short spindles/tall BJ's; they just won't yield as aggressive numbers vs the tall spindle.
So that left me w/two options to improve Caster w/o shifting the wheel centerline back in the opening: modifying the lower arms or going aftermarket. When I did the math, purchasing those lowers was the better option for me since I didn't need yet another fabrication project added to my list & the stated info of the BJ pushed forward.
Measuring, calculating accurately, set-up & fab takes time. When I did the cost analysis, the
difference was <$300 fabricating my own vs buying some off the shelf. Using a 'name brand' product usually doesn't hurt one in the event of re-sale vs. backyard engineering either although there are exceptions (AIM aka Chassis tech aka 'airbagit' and/or whatever creative new name they've adopted). It also isn't a 1-off part & could be replaced within days should something happen to damage the part. Hard to source pieces are no fun to track down/source. Plug & play has value.
