This is the problem area....5/16 steel studs screwed into aluminum, and torqued to only 16 lb ft max. Rear wheels have been known to come off because of stripped threads....not good !
Bob Danielson (BobbyD) knew what was needed...steel Keenserts installed so the steel studs could get a real grip. This requires drilling out the old threads and using a tap to cut in new threads so the Keenserts can be installed.
The challenge was making a jig so the average guy could do this at home. The six studs all have to be exactly perpendicular to the trailing arm, so the jig would need to be foolproof and precise. At this point Bob got Rick Patton involved. Rick is not only a TR6 guy, but he also runs a machine shop business, and he came up with a kit that allows even guys like me to perform this task ! Thanks Guys !!
A 1/2" thick piece of billet aluminum bolts to three existing studs...incredibly precise.
A drill alignment mandrel made out of hardened steel keeps the drill bit perpendicular...when I first put this together I thought of a fine Swiss watch, it's made to that degree of precision.
The drill bit is "X" size
A 7/16-14 bottoming tap
Here is what you need to get started.
Once the hole was drilled out, the tap work was easy..
Pull off the plate and screw in the Keenserts
A special tool comes with the Keenserts and is used to drive home the locking prongs.
Move the plate and repeat the process for the next three studs. Below, one side is done and ready for the new studs.
New studs with red loctite will ensure these bad boys will be good for the duration !
Here is the link to Bobby D's site with more details....http://tr6.danielsonfamily.org/TAJig.htm
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