Just got the oil changed in the transmission of my truck. Bought it about a month ago at 71000 kms, but couldn't find out if the oil in the transmission was changed or not. Well got it changed today at 74000 kms, cost like $275 tax included but now the power train is good to go. I still have to change the oil in the differentials but i can do that myself and keep the warranty. What oil do you guys use for the rear diff? I know it is 75w140 ,priced the oil today at the dealer and it was $35 a litre, this seems really crazy. I priced it at another place and for quaker state synthetic it was like $23 a litre and i won't use quaker state. I was thinking on royal purple if i can find it around here, but what else would you suggest? Mechanic also told me i was lucky to have the 5 speed tranny and 3.92 gears. Anyways, what do you think is the best oil for the differentials? I could search more, but by the time i get a response, the truck will be rusted to pieces. I have the slowest internet in the world, can't even look at any pics. Thanks.

 

Man, how far did they bend you over? The tranny fluid job should have been no more than $130 including filters (DIY about $70). You can get Mobil 1 75w-140 for about $13 a liter at Advance Auto Parts. I think the front diff is 75w-90 (?) Mine's a 4x2, so I'm not sure of the weight of the front diff fluid. Don't forget the friction modifier if it has LSD.

 

Yeah he didnt get raped at all as he is from canada so think canadian dollars. Yeah its expensive my 2500 needed about 3.5 liters and at about 25 a piece it wasnt cheap.

 

Im looking to do a tranny flush too, i sure hope it doesnt cost that much. What did you have them put in it for fluid? Synthetic or regular? What brand? thanks

 

Might want to reconsider the flush... how many miles? Apparently, if it hasn't been flushed regularly, a flush can dislodge bad stuff and clog little valves and passageways. When I did my drop 'n' drain, I used Valvoline ATF+4 (seven quarts). You can use synthetic, but it isn't necessary.

Is there THAT much difference in Canadian dollars and Uncle Sam's current printing? Double (or half, depending...).

 

Almost 80,000 miles. I would rather risk disloging stuff, other than running old, broked down fluid with a bunch of stuff thats about to dislodge. From what ive read, as long as its flushed by a pump inlet machine, it gets completely flushed, and anything disloged will be flushed out. Along with a new filter, and im good to go. I just need to decide what fluid to put in...

 

Actually, you want to go the route of disconnecting the line as it enters (or exits) the cooler and letting that fluid run into a bucket while you keep replenishing through the dipstick tube. That keeps the fluid running in the same direction. I'll just keep doing drop 'n' drains every 15K, changing the filters as recommended.

 

I agree, after i get a full flush, i will just to a drop 'n' drain every now and then. but i hear that disconnecting the coolant line doenst flush the whole system.
heres where i got my info, let me know what you guys think: http://www.gadgetonline.com/TransFlush.htm