i have a 98 r/t and about to change the trans fluid and rear end fluid.
rear end is 3:92 9.25 limited. how much fluids do i need for each and which r best to use?
i have done this stuff b4 so im familiar with how to do it, but its been on old
junker cars. would like to do it right and with good stuff on my dakota.
it has 140k and the only thing i have is the trans gasket. please help
with any info on whats best...

 

i just had to have my 9.25 with lsd and 3.92's rebuilt...a common problem with them so hopefully you don't find any metal in your diff. I was/had them put in Mobil 1 full synthetic 75w-90 in the rear with the limited slip modifier. It takes a little over 2 quarts so you'll need 3 bottles of it. here is a good diy i found for the rear https://dodgeforum.com/m_569784/tm.htm

 

oh yeah thats not on a dak but its still the same rear end.