Kvic,
You've got the right man! My 98. 5 spun the pass front bearing in2005 at about 120,000 miles. I did the Dynatrac kit at that time. HIGH quality, Timkin bearings, tight tolerances. No problems, MM hubs at that time. The only drawback was that there was no provision for the ABS tone ring. Completely satisfied otherwise.
Flash forward to 2009 my 2004. 5 driverside hub started to whine. I called the same distributer that I had bought the previous kit and he had none in stock, but did have the new Spyntec kit. He stated they were equivalent in quality, and that the Spyntec also pressed in the bearing races into the hub. Also there was the correct tone ring for the ABS... (now present in the Dynatrac kits also). Also the Spyntec kit was a bit less expensive.
And they had it in stock...
I would have to say that the quality of the Spyntec equaled that of the Dynatrac kit. Both kits used the MM hubs... (Dynatrac now uses their own). Not having to run the hubs down to my local shop to press in the bearing races was a help.
I would recommend either kit without hesitation.
Now with the recent kit I chose to also change the Ball joints... . two days of hammering on the drivers side and 2 hours in the passenger side... I would not wish that job on anyone. If you have the proper tools and a good torch I am sure it would have been easier... .
Eddie