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Put 15 miles on it today mostly on the beach in 4WD--the front diiferential is definitely smoother and quieter, and engaging/disengaging 4WD and front lock more positively with the ATF...

In a recent thread fellow forum member mcraigchr asked about Hisun's recommendation to use Dexron 3 ATF in the front differential--I had noted that in the latest SM I received for my HS400 (a "UT400"as labeled by Coleman) that was also the recommendation. AS it was in conflict with other information in the manual I contacted both Coleman and Hisun who both verified the recommendation. from the HS400 SM¹: from the HS550/750 SM¹ (same table obviously): I did not find this at all odd, as ATF is used in many high torque gearboxes and manual transmissions--it is VERY heat and wear resistant with additives intended to protect the sliding contact of helical gear sets as well as excellent protection for ball bearings, and bushings. I had replaced the front diff juice on my 2020 HS400 to 75W-90 SAE GL-5 gear oil at 20 hours (per OM "break-in" recommendations) and decided I would use Dex 3 at the "next change". Today in a bout of ambition I did just that--then took off for a 5 mile ride to see "what was what?" My first impression was that the differential was noticeably quieter and smoother, after riding a couple miles I stopped and engaged 4WD--as I had suspected 4WD engagement with the ATF was much improved, no need to blip the throttle (or drive a few feet) to get it in or out of 4WD as had been the case with the gear oil. The front differential lock also engaged much more positively and smoothly. FWIW I used Valvoline DEx/Merc Full Synthetic MaxLife ATF (fully Dexron 3 compatible)--it took about 19 ounces to fill it to the botom of the filler opening (the OM says 9.6 oz.; on my first change I drained out 18 oz. or so). So, bottom line; highly recommended! --------------------------------------------------- ¹ - "Dextron" with a "t" is a very common misspelling/mispronunciation of "Dexron"--I guess because so much contemporary stuff is named "somethingtron" I have even seen it on many sites that should REALLY know better.

Hello.. everyone my name is dustin. I am a nubbie to forums all together. But I have a 08 800 sand viper and I need to replace my clutch and I was Hoping some of the pros on this forum could tell me if there is a automotive clutch that will fit this thing. I have heard of a geo metro clutch working. But ??? don't want to buy one if it will not work.. if not where is the best(and cheapest) place to find one for it. Thank you in advance

Going to pick my new Mule Pro FXT Camo tomorrow. Central Fl. First UTV ive owned but have had several 4 wheelers over the years.

Still waiting on the roof and windshield to come in but its home.

Check out pacific eagle UTV, if you end up purchasing from Mike, be sure to tell him your a UTV board member... you get a discount. Pacific Eagle UTV Enclosures Also check out sidebysidestuff.com.

Awesome info!!! So assuming we can get the ECU rpm limit changed, via reprogramming or a getting an 2015 unit, then all we have to do is compensate for the gearing changes. So it's unlikely that those of us with slow units will make the internal engine changes, but we should be able to compensate for the reduction on the final sprockets, right? Are you confident that just changing the rear sprocket to 38 will help, or will we have to go much lower in tooth count? Also, what does a stock 2015 unit max out on in respect to revs?