[KenStacey]

Hi guys I have a P38 with only 105k miles with a clunking noise in the rear drivetrain when I accelerate or going uphill. I’ve taken it to 2 different reputable mechanics in my area. One tells me it’s the transfer case and the other one says it’s the spider gearsin my rear differential. The Ujoints are fine but a transfer case is crazy expensive labor wise and I don’t know what to do. Any insight from you gurus would be greatly appreciated!!

 

[Richard_G]

Drop the rear propshaft off, making sure you put the nuts back on to stop the brake drum from coming off, and drive it. If it still makes the noise, it's transfer case, if it doesn't, it's rear diff.

 

[mad as]

if its the planetary and sun gears (spider gears) in the diff it will only make noise when cornering as this is only time they actually move unless your doing wheelies off cause.