Suspension Gurus, I am looking at converting the front suspension on my '40 Buick Coupe to ball joint style using the conversion referenced in nthis crankshaft coalition article: http://www.crankshaftcoalition.com/wiki/1937-1957_Buick_Oldsmobile_Pontiac_suspension_upgrade I noticed this is also posted in a rather dated thread here and it didn't look like any of the members who posted there had posted anything since, so here goes. The car is currently all stock, but instead of sticking a substantial amount of money into the stock front end, I came across the above article. I prefer to not stub the car and this seemed like a workable alternative for my skill level. This all being said, I want to collect all the parts before I begin the swap. I have discovered a couple issues while researching this and wanted to see if anyone had any advice on the following: -The 1958 Pontiac Lower control arms required seem to be EXTREMELY hard to find (at least in Wisconsin). I have scoured Ebay, emailed Frank's Pontiac Parts, visted several specifically vintage junkyards (5,000+ old cars) around here and have turned up none. -The current Lower control arms on my car are 20" from Center of Kingpin to Centerline of the pivot shaft. '58 Pontiac Lowers are 18" and as the article states, I would need to drill new mounting holes. Not a huge deal, but next would be my possible solution. After thinking about this, I noticed further down in the article, one of the authors welded some 3/8" plate into the stock lower control arms of his '49 Olds and used Ford Courier Lower Balljoints becuase the profile was narrow enough. -Would there be any major disadvantages to lasercutting 3/8" or 1/2" plate to the correct profile and just welding it into my existing Lower control arms and using the Courier Balljoints? Does anyone have any experience with this? If the stock suspension supports the weight of a huge, morphedite straight 8, I'm pretty confident any Nailhead, Early Olds or Aluminum 215 I get my hands on will be equal or lighter. Uppers are not a problem as many late 50's BOP's will work. I plan to just order the CPP Spindles and keep drum brakes of some form. The car currently stops fine after I converted to a manual dual bowl jeep master cylinder. If anyone has done this conversion or has input it would be greatly appreciated!