I am your neighbor Portland OR.

 

thats what i had in mind too when i started using Heavy Shockproof .. so what i do is each time i get in the car .. i would definitley let it run a bit before i start moving or just drive very gently til i feel the car is warm enough to move that thick liquid around ...

 

The guys at the shop I take my car to (Cascade) warned me to stay away from the shockproof HD, for the reasons above and since WA is cooler and my car is a daily driver. On ething I might do is run it for a track event, but after that replace it with stock fluid again. The redline HD is so thick it will leave a coat on your gears afterwards anyway, giving you the protection you're after, but that way you run on the thinner stock fluid which is safer for a daily driven car.

I haven't tried this in the TC yet, but I did it with BG synchroshift in the transmission, and it shifts very smooth now (even when cold), even though I'm running on the stock mitsu oil after one tank on the BG.

 

Redline Heavy Duty Shockproof is FINE for the transfer case. I have been using it since I changed my clutch. I have launched the car atleast 100 times since then and the TC is perfect. However Redline Heavy Duty 70w90 is NOT good for the transfercase.

I also added some Redline Heavy Duty Shockproof to my tranny (like half quart) along with Penzoil Syncomesh and it is shifting much better than straight syncromesh. Has anyone else mixed the two fluids before besides me?

 

Not even Redline recommends HD Shockproof for use in the Evo TC. Their "PowerPack" for the Evo uses a mix of different products instead. If there was a number of people who've used it for over a year, and took the TC apart to actually inspect the bearings, I'd be inclined to do so myself - but just one case with short time experience and no actual data isn't very convincing (especially if Redline says not to do it).

 

Warm the car up first, then drive. Problem solved...

 

Idling the car does not warm up your drive train.

 

Someday when I install my LSD I will inspect the TC carefully and take some pics. As for right it works for me but of course OEM fluids will probally be best for 99% of the users on here.

 

Shepherd recomends it, in fact he wrote on the transfer case I'm installing right now, "mitsu part #xxxxxx (I don't remember the diaqueen # off the top of my head) or redline heavy weight shockproof ONLY".

I ran shockproof in the TC and rear diff of the eclipse for over three years, daily driving for a year and a half, a couple open track days, and tons of drag passes. The bearings on it are still in great shape, backlash on the ring and pinion in the rear is still perfect. I also NEVER had any type of gear failure on either of them either.

Shockproof is actually weighted at 75w250, while it is thick it's cold flow charectistics in a tranny aren't as bad as you might think given how slow it pours out of the bottle.

I see where the guys at cascade are coming from though, I wouldn't bother running it on a lower powered daily driver. For a car that is tracked though I would definetly consider it.

 

Shepherd recommended Heavy Shockproof to me also.

 

same here....I just got an email from him on what to use in my tc, he said diaqueen or redline shockproof is what he recommends and I have a friend that uses it in his 1G awd tc and another uses it mixed with BG in his tranny in a 1G dsm, no problems from either....im thinking of going with the redline, shepherd wouldnt recommend it if he didnt know it worked, thats how I see it anyway ....

 

I just purchased a quart of Redline HD shockproof for my TC. Originally I had the dealer flush all my driveline fluids after about 30k. They found metal shavings in the tranny & TC so they replaced BOTH under warrenty.

Soon after that (at about 40k) I decided to upgrade my fluids and purchased the Redline "Power Pack" which consists of 75w-90, MTL, & MT90 for the TC, tranny and rear. Those fluids are what is recommend by Redline on our cars. When I drained the stuff on my recently replaced tranny & TC there was hardly any metal sticking to the draing plugs.

However after only 10k miles of use with the Redline 'Power Pack' I started to hear strange sounds coming from either the transmission & TC so I drained the fluids again. Sure enough there was metal shavings on the drain plugs of both the TC & tranny. Also the liquid that came out of the TC was like water after only 10k miles. The only thing that didn't look bad was the rear end.

I then replaced the Redline "Power Pack" with Royal Purple 75w-90 in the rear & Tranny and purchased a gallon of Diaqueen for the TC. The noise got a little better and shifting improved slightly.

Its about time to chage the fluids again so I'm going to try the Redline Shockproof stuff this time for the TC becaues I've heard good things about it. In the tranny I'm going with the Penzoil, I'm unsure what I want to put in the rear.

 

I've used Pennzoil Synchromesh in my Shepherd trans and Redline HEAVY Shockproof in my Shepherd stg 3/Quaife transfer case for a little over 8000 hard miles with a 2.3 and 35R on 30+ psi boost. I've changed the fluids twice so far and no metal shavings. The trans shifts like butter, it doesn't grind, and the transfer case doesn't whine.

Remember, Redline has 3 different "Shockproof" gear oils. Of the 3, only HEAVY SHOCKPROOF should be used in your transfer case. Use anything other then Diaqueen or HEAVY Shockproof in your t-case and you're asking for trouble. http://www.redlineoil.com/products_g...61&subcatID=20

 

Redline HD shockproof in my TC for 20,000 miles, 8 track events, daily driving.

No problems. I am changing it again this holiday weekend.

 

What do you guys use in the rear differential?