Your take on mixing brands of rear end oils.

[33 IMP]

Shitcan the synthetic. Get a good brand of dino oil (my friend who ran a one-man rearend shop always used and recommended Torco), and two bottles of ford/autolite lsd additive. Take two aspirin and call me in the morning.

 

[440 Charger]

Shitcan the synthetic. Get a good brand of dino oil (my friend who ran a one-man rearend shop always used and recommended Torco), and two bottles of ford/autolite lsd additive. Take two aspirin and call me in the morning.

Amazing what we all learn.

 

[Cranky]

Shitcan the synthetic. Get a good brand of dino oil (my friend who ran a one-man rearend shop always used and recommended Torco), and two bottles of ford/autolite lsd additive. Take two aspirin and call me in the morning.

This is my first time to use syn rear end oil after doing a bunch of research and probably won't ever do it again! Just shows to goya......but I used 2 bottles of the Mopar LSD additive. So far so good but like I said earlier, going to get things warmed up good and see how it acts. So far so good with a cold rear end.

 

[440 Charger]

This is my first time to use syn rear end oil after doing a bunch of research and probably won't ever do it again! Just shows to goya......but I used 2 bottles of the Mopar LSD additive. So far so good but like I said earlier, going to get things warmed up good and see how it acts. So far so good with a cold rear end.

75-140 is ok not sure with a lsd takink that as a limited slip differential.

 

[Cranky]

75-140 is ok not sure with a lsd takink that as a limited slip differential.

That's what I put in it initially....Mobil 1 syn 75-140 with the LSD additive built in....then I added some more additive and it didn't help at all. So, It's out and in went the regular oil with the Mopar additive and it's acting better.

 

[440 Charger]

That's what I put in it initially....Mobil 1 syn 75-140 with the LSD additive built in....then I added some more additive and it didn't help at all. So, It's out and in went the regular oil with the Mopar additive and it's acting better.

cone clutch?

 

[Cranky]

cone clutch?

No....this is a Dana 70 which uses the same setup as a 60. Clutches and well, I've have more problems with clutch type LSD's than the 8 3/4 cone units for some reason.

 

[440 Charger]

No....this is a Dana 70 which uses the same setup as a 60. Clutches and well, I've have more problems with clutch type LSD's than the 8 3/4 cone units for some reason.

It seems time for a change

 

[khryslerkid]

Talking with Cass aka Dr. Diff, he stated that they did a study on the additives (friction modifiers) and the one that held up the longest was the Motorcraft (Ford). They do break down over a period of time. Any local Ford dealer carries it for around $7.00

 

[33 IMP]

Talking with Cass aka Dr. Diff, he stated that they did a study on the additives (friction modifiers) and the one that held up the longest was the Motorcraft (Ford). They do break down over a period of time. Any local Ford dealer carries it for around $7.00
View attachment 1125099

Oops, said ford/autolite. Guess i meant ford/motorcraft.
At least there was a spark of truth......

 

[Cranky]

It seems time for a change

Naw....it's in there now and ain't about to tear into it again....plus what little bit I drove it around after pulling out the syn, it shows improvement.

Talking with Cass aka Dr. Diff, he stated that they did a study on the additives (friction modifiers) and the one that held up the longest was the Motorcraft (Ford). They do break down over a period of time. Any local Ford dealer carries it for around $7.00
View attachment 1125099

The Mopar stuff seems to be working....