Changing Tranny Fluid
Aug 23, 2004, 01:51 PM
#1
Changing Tranny Fluid
I want to change my tranny oil soon (5 spd), so when I was under the car changing the engine oil, I took a look at the tranny. I'm not entire clear on which bolt is the fill plug, and where to drain the old fluid. Do I remove that black plate to drain the fluid, or is there a drainplug that I didn't see? Also, which bolt is the fill plug? I saw two next to each other - a normal looking bolt, and one that that takes either a allen key or a torx wrench (I didn't look close enough to tell).
Feel free to recommend gear oils as well. I was thinking about the BG Synchro shift that lancershop.com sells. Any info is appreciated
Feel free to recommend gear oils as well. I was thinking about the BG Synchro shift that lancershop.com sells. Any info is appreciated
Aug 23, 2004, 02:39 PM
#2
I think it's the bolt on the front side of the tranny that doesn't appear to do anything else. Next to the clutch reservoir.
I went out and took a pic of mine
BG should be fine. I was actually thinking about putting GM Synchromesh in mine when I change it, because I had such good luck with it in my DSMs.
I went out and took a pic of mine
BG should be fine. I was actually thinking about putting GM Synchromesh in mine when I change it, because I had such good luck with it in my DSMs.
Aug 23, 2004, 03:04 PM
#3
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A friend of mine was trying to change his trans fluid in an 84 Mustang. He thought he had the right bolt, but it was for his synchros (or shifting forks?). He had to take it to a shop to get it fixed. Better be dang sure its the right one.
Does it mention anything in the owner's manual? If not, might not be a bad idea to ask the maintenance guys at the dealership, or at a privately owned shop.
Does it mention anything in the owner's manual? If not, might not be a bad idea to ask the maintenance guys at the dealership, or at a privately owned shop.
Aug 23, 2004, 03:25 PM
#4
I was going to look under the car, at the backside of the tranny, to see if there were any likely bolts back there (I think the one in my pic is an allen or torx bolt, which probably is NOT the fill plug, then) but the parking lot where I work is NASTY. I'd be looking for a 17mm bolt with a copper crush washer on it.
The only bolt I'd be worried about taking out (if this tranny is like a DSM's) is the one that holds the shift fork for the reverse gear. Now that I'm thinking about it, the one on a DSM is a torx bolt, so DON'T TAKE THE ONE IN THE PIC ABOVE OFF IF IT'S A TORX OR ALLEN BOLT!
The only bolt I'd be worried about taking out (if this tranny is like a DSM's) is the one that holds the shift fork for the reverse gear. Now that I'm thinking about it, the one on a DSM is a torx bolt, so DON'T TAKE THE ONE IN THE PIC ABOVE OFF IF IT'S A TORX OR ALLEN BOLT!
Aug 23, 2004, 06:38 PM
#7
Well, otter says he's planning on using BG Synchroshift, which is a good fluid. It's just not easy to find. I'm going to try GM Synchromesh, available at any GM dealer. I've also heard good things about Redline fluids, though there is some debate over MT90 or 75w90 or a mix of both.
In reality, though, just about any 75w90 will do.
In reality, though, just about any 75w90 will do.
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Aug 24, 2004, 10:21 AM
#9
Originally Posted by otter
Awesome, thank you for the help
Last question, do I need to suck out the old fluid through the fill plug, or do I remove that black plate to drain it?
Last question, do I need to suck out the old fluid through the fill plug, or do I remove that black plate to drain it?
Sep 3, 2004, 08:56 PM
#11
Diagram was very helpful, fluid is changed no problems... almost. After I got all the new fluid in, I realized that I forgot to put the washer back on the drain plug. Grrrr. I'll watch it for a few days, if I see any leaking then I'll drain the fluid into a container and fix it.
Used the BG Synchro shift from lancershop.com (synthetic version), the stuff is awesome. Shifting has smoothed out a *lot*, and most of the clunkiness between 1st and 2nd is gone.
Used the BG Synchro shift from lancershop.com (synthetic version), the stuff is awesome. Shifting has smoothed out a *lot*, and most of the clunkiness between 1st and 2nd is gone.
Sep 8, 2004, 11:26 AM
#14
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ALWAYS loosen the fill plug BEFORE you loosen the drain plug.. that way if it's seized or you can't get it off, you can still drive the car.. if you drain the fluid and can't get the fill plug off, you are SOL
I put Motul in mine and it shifts like a dream
-joe
I put Motul in mine and it shifts like a dream
-joe
