I changed my differential fluid and decided instead of buying a new rubber check plug and gasket that i would buy this chrome plated cover that has a threaded check plug and comes with a gasket and chrome plated bolts. Since it was only $26 + tax i think that it's a great deal!
Here's a link
It fits '61-'89 Chrysler cars & trucks with 8-1/4" ring gear
http://www.autozone.com/autozone/parts/ ... 810_19153_
I thought the differential gears looked like they were in good shape especially since that's probably the original axle...It would have been better had i taken the time to take the bed off and use a electric pressure washer to clean everything off good 1st but it worked out OK and so far no leaks
