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I have an 1989 5.0
around 175,000 miles
Fluid really dirty but ive been told not to change it as it might screw up my tranny by clearing out all the sludge that is keeping it together.
Any merit to this?
Thanks in advance.
I have an 1989 5.0
around 175,000 miles
Fluid really dirty but ive been told not to change it as it might screw up my tranny by clearing out all the sludge that is keeping it together.
Any merit to this?
Thanks in advance.
Best thing for it is to drain the old crud out. Only thing sludge could prevent it leaks around the tranny pan but thats nothing a new gasket can't fix. Drop the pan, change the filter, new gasket and fill back to spec.
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96 300ci M5OD 2wd Reg Cab Long Bed 3.55 LS Gears and 8-Track player
A question that sometimes drives me hazy: am I or are the others crazy?
Albert Einstein
The "don't drain old fluid" saying is a myth. Get that old fluid out as soon as you can. Make sure you use a quality fluid, though. I have drained too many transmissions with burnt fluid and they performed well afterwards. You might want to use Seafoam Transtune prior to draining.
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1990 F150 XLT Lariat
302/5.0L - E4OD | 3.55 Gears - Non-Limited Slip | Stock GT40 Heads | .030 Over (Speed Pro H120CP30 Pistons) | T-Moss Ported Lower Truck Intake | Comp Cams XE258HR-14 (35-512-8) | Hedman Shorty Headers | Finally in possession of a brand new set of Trick Flow 170 Heads (58cc). Now I need some time to install.
if you do it order a new pan with the plug like your oil pan. itll allow you to hold more fluid. (ie better lubrication and cooler tranny temp) and make draining it ever again much easier