911 front struts? When did they switch to 3.5", Got my new Koni Adjustable struts. Gland nut is wrong though Options

[JRust]

Okay so I thought the 3.5" caliper spacing was on late 70's & up struts. My strut assemblies have koni stamped on them with the part #9013410801. I have Koni classic inserts with part# 861638 which I need to replace. Weird part is my lower ball joints were the early kind with a bolt instead of the pin. I'm going to go out to take a few pics to post. I have new lemforder ball joints but they are for the pin insert & not the bolt. Didn't realize they were different than what was on there. I had these sitting in my stash for a while. Just trying to make sure I get the right part.

Somebody who knows the 911 suspension differences please enlighten me (IMG:style_emoticons/default/confused24.gif)

[Paragon]

If you like, you can use the 911 later style externally adjustable Koni gas inserts in those housings. The 8641-1039 Sport inserts are packaged with the coarse thread gland nut that won't be appropriate for your Koni strut but you just purchase an additional fine thread gland nut and you're good to go. Although the 914 front insert (8641-1077 Sport) is very similar in shape, it's different enough that it won't drop in.

http://www.paragon-products.com/product-p/8641-1039sport.htm

http://www.paragon-products.com/Koni-Gland...25.01.011.1.htm