Having my rearend rebuilt, what fluids?

[NewToFord]

I am having my 8.8 completly redone this week. I am putting in a 31 spline t lok, 31 spline axles rebuild kit, etc. I bought the rebuild kit from summit with the seal and it came with synthetic gear fluid. 3 quarts. Is there any other grease or fluid I need? I am having a shop do it, but I just want to make sure I have everything set. Any other tips of help with the build? Thanks

 

[87GT Drop Top]

What brand fluid is it?

 

[NewToFord]

I'm not sure it's synthetic I'll have to check

 

[2000xp8]

Depending on what unit you use, you may need friction modifier.

 

[NewToFord]

Depending on what unit you use, you may need friction modifier.

Could you explain more please?

 

[NewToFord]

Summit's kit came with 75-140 synthetic gear oil with gl-6. I bought the Ford Racing 31 spline tracktion lok. I thought I saw something about t-lok additive but I am not sure.

 

[2000xp8]

Could you explain more please?

When rebuilding a rear, i know that with a factory traction loc and an auburn, you need to put in friction modifier.
Supposidly it keeps the clutches lubed up so the rear doesn't seize up then wear itself out.

I've been told some fluids already contain it.
But don't quote me on that, because i've always put it in myself.
You can get a bottle of it directly from ford.
Ford Racing Performance Parts []

 

[srtthis]

i prefer royal purple cuz its got the friction modifier mixxed in it

 

[87GT Drop Top]

i prefer royal purple cuz its got the friction modifier mixxed in it

Exactly. That's why I asked.