Does anyone know the web addresses for any of the upgraded/high performance half shaft makers. I was able to find GKN, but I didn't know if they were the best. All help will be appreciated.
Raxle makes 'em for the 99s (28 spline). GKN is highly reputable - but you do have the option between Raxle and GKN since you have a '99 (Raxle did not make 31 splines for the 01 crowd, last I heard).
IIRC, there's also newer company out there on the market that has been catering to the 03/04 crowd...not sure if they make any for 28 spline.
You probably want to bookmark & read through the tech articles related to the IRS on Joe Lynch's homepage (he has a '99):