rear end gets hot....to hot to touch.....

[rubbinsracin]

yeah, our 80-90 has never smelled burnt, and because we race a 1/4 track once a month and a 3/8 mile track every week during the month we switch gears regularly, but i always do it the next day and we have never noticed how hot the things get. when we change gears we use a jumbo pitcher(like for making tea in) and just dump the oil back in that came out, then we go ahead an pour just a little more in from a new bottle, because we cant get all the 80-90 out of the pitcher of course.

[joedoozer]

I'm betting "eventually" is more like after a heat race every gear and bearing would be a nice shade of blue. I believe winters and all most the other manufacturers recommend right at 2" below the inspection plug. Whenever I drain the fluid I just make sure to get out as much as I can and throw a gallon in it and its right. I think you drain out around a quart when changing gears though?

I was (or wasn't) thinking of how much came out when you pulled the cover. Total brain fart.

On a side note. Walmart sells ice cream in 5 quart buckets. Sometimes round and sometimes square. These are great for changing the oil in rearends and transmissions. And for changing gears. You can fold the bucket and makes it easier to pour the oil back in. And they are white inside so it makes it easier to see if you have anything floating in the oil. I heard someone mention the pitcher idea, thought I would share my ice cream bucket one.

[rubbinsracin]

I heard someone mention the pitcher idea, thought I would share my ice cream bucket one.

we also used an icecream bucket before we got a pitcher. went to the pitcher because we kept bending the bucket and the top would crack and make it go everywhere. if you dont change gears much its works great. but because we change quite frequently we invested a few bucks in something that shouldnt break....key word...shouldnt.... lol

[talclipse]

I was (or wasn't) thinking of how much came out when you pulled the cover. Total brain fart.

On a side note. Walmart sells ice cream in 5 quart buckets. Sometimes round and sometimes square. These are great for changing the oil in rearends and transmissions. And for changing gears. You can fold the bucket and makes it easier to pour the oil back in. And they are white inside so it makes it easier to see if you have anything floating in the oil. I heard someone mention the pitcher idea, thought I would share my ice cream bucket one.

I figured that's what you were thinking. Didn't mean to sound like I was busting your balls.

[car23]

i check patterns on all the diffs i dont go buy a certain parameters. the winters diffs i have done had awesome patterns on them (using shims that were already in place). the last one i did had no shims to be found. pattern looked good backlash was within .002 of the other one. i had looked back at my notes from where i had checked the rearend before while replacing some axle tubes. (you never know what u will encounter when setting up diffs.) i have sent gears back that just wouldnt get me what i wanted to see in patterns. i have set the same gear up in different housings and have a totally different look. i have not had a race failure on any of my arca rearends. they have broke a couple of pinions on pit road though. lol

[parrot69777]

Actually, Tiger I think, put a quick change in a 300 lap race with 1 qt of synthetic oil in it and ran it like that a long time after only using 1qt of lube in the whole rearend.

I read that article too. However they used some type of oil treatment in with it. Can't remember what they called it but I tried to find it and no one had ever heard of it or could tell you where to buy it. Couldn't get Tiger to respond to any communications about it either.

[Egoracing]

I read that article too. However they used some type of oil treatment in with it. Can't remember what they called it but I tried to find it and no one had ever heard of it or could tell you where to buy it. Couldn't get Tiger to respond to any communications about it either.

Was it an additive or a metal process? I could not remember. If it is a process and it is theirs they probably call it something even if is a common process that is used in 100 other applications called something else.

[parrot69777]

It was a metal treatment called FR85.

http://www.circletrack.com/drivetraintech/ctrp_0902_quick_change_rear_end/index.html

[Egoracing]

I worked in maint at a seafood mfg plant once and we used a BRIGHT red gear lube in the gear boxes in the production area. It was in the area of $200 a gallon and that was in the mid 90's. The stuff would not mix with water, it would climb anything that moved (A pencil dipped in and spun between your fingers would cause it to climb up the pencil and if you spun it hard enough it would go all the way to your fingers) and if you put some on a piece of steel and heated the other end with a tourch it would thin and move to the hot spot. I have tried to find it several times after but the company that made it is no longer in business and the company that bought them quit making it due to cost.
After it was run the something and it warmed up the metal would have a red tint that would only come off if you machined it off. We used some in out modifieds back then and using it in the 9 inch we ran we only used about 1/2 the amount of normal lube and it could be filtered and reused.