Front Diff Temperature

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May 22, 2008 | 01:51 PM

#16

Tobin

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Joined: Jan 2008

Posts: 279

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From: Orlando, Fl

Quote:

Originally Posted by enafzige

I've actually wondered that myself. I'm sure if I would have weighed the axles front and rear that the front would've been carrying more weight than empty...but I don't know how much that would effect the front diff temp.

One of these days, I'll hopefully install a dynatrack manual hub conversion kit and see if that eliminates the heavy towing/high front diff temp connection.

--Eric

The dynatrac kit should eliminate any temperature over ambient in the front diff. Nothing will be moving in there until you lock it in. My Ford's front diff is fully manual, and that is nothing but ambient temperature.

Tobin

May 22, 2008 | 11:38 PM

#17

XLR8R

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Joined: Nov 2005

Posts: 7,785

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From: Pattonville, Texas

Quote:

Originally Posted by Tobin

120*F for the front diff and 105*F for the rear diff with a infared temp gun on the differential covers.
Tobin

Quote:

Originally Posted by Tobin

Aiming inconsisencies? Hold the thing up to the diff and pull the trigger, its not like a sniper shot. I know the thing isn't too accurate, but what can it be +/- 10 degrees?

Tobin

Not necessarily operator error, although that contributes to the margin of error... and even at the +/-10* you mention there's an overlap between the front & rear covers of 5 degrees.

This is a case where infra-red measuring is good for relative temps, but not absolute temps. (i.e. you can only check front diff temp accurately against itself)
You could refill with 90W-140W and see if temp is different after the same drive in identical conditions.