View Poll Results: which rear gear oil is best?
redline
12
21.43%
royal purple
36
64.29%
lucas oils
4
7.14%
dinosaur(coventional) oil
5
8.93%
Multiple Choice Poll. Voters: 56. You may not vote on this poll
favorite synthetic gear oil
#42
TECH Fanatic
Originally Posted by Sgt. Spuds
So what brand of 140wt non-snythetic do you think I should use? Something that I can get localy. Also, what additives do I need? Why not synthetic?
Thanks for all the help.
Thanks for all the help.
If you are using a friction type limited slip, most lubericants need an additional friction modifier or you will experience 'clutch chatter'. Some of the newer lubericants have this modifier mixed into it at the time of packaging..... and some dont. Most dino's do not. I like the Ford friction modifier, but I think they stopped producing it back in the late 90's.... and the only other acceptable modifier I have used is the RedLine modifier.
So far, fully synthetic differential fluids do not have the 'shock loading' characteristics that are an absolute must with a performance build. The factory synthetics (and weights used) are just fine if you are going to get groceries.... driving to work.... and so on. But when you are making good power, shifting it hard, towing a trailer.... or just driving it like you stole it, the syn's and the lighter weight lubericants just dont cut it.
#43
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I just rebuilt my transmission and used GM Synchromesh. I only ran it down the road for about 10 minutes and parked it. Hopefully it works well. I've read great reviews of it on here. All I've got to say is that for $8.30 a quart, the stuff better be phenominal.
#47
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Originally Posted by silver02ws6
is it ok to run a synthetic with a tru trac?
#49
TECH Fanatic
Originally Posted by dailydriver
You can run any gear oil you want in a Tru Trac, but i heard a rumor/speculation that using a 140 weight (whether mineral or synthetic) or using the FM additive reduces the bias somewhat. (i.e.; if it has 2:1, it becomes a 1.8:1). I would not take this as gospel. chicane: have you heard anything about this, or could you comment/speculate on this theory??
Originally Posted by Jimmy P
I am also interested in hearing your opinions on what gear oil to use in my tru track equiped 12 bolt.
This might be something to read as well.
https://ls1tech.com/forums/gears-axles/498540-redline-shockproof-viscosity-stock-10-bolt.html
#52
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what fluid shoud i use on a 10bolt thats probably never been changed? 52k on it
are there any DON'Ts like not flushing or changing tranny fluid after is been neglected for so long?
are there any DON'Ts like not flushing or changing tranny fluid after is been neglected for so long?
Last edited by -Freak-; 09-02-2006 at 11:47 PM.