What are you guy's putting in your diffs? I just got an adjustable alloy diff and am unsure if I use some sort of thick oil or use regular automotive grease. Thanks in advance.

normal good quality auto grease will do - dont pack it just apply a good amount around the gears,silicone oil is used in viscose diffs to adjust the locking action - normal grease is used on adjustable/self locking diffs

Valvoline assembly grease works well and is a cheap alternative to more expensive brands.

[link=http://www.partsamerica.com/ProductDetail.aspx?categorycode=3251&mfrcode=VLV&m frpartnumber=608]Diff Grease[/link]

I used the following Lucas "Red & Tacky" Grease in my new FG 8485 LST diff. It was at Advance Auto for $5 and I have enough to do a hundred diff assemblies (or more)

http://www.fordtractorpart.com/lucas...3997-prd1.html

I also did NOT pack in extra grease. I just covered the bevel gears well before assembly.

Ken

Ken, How is the new diff? worth the price or not? Any noticable differance in durability?
I have had zero probs with my stock diff but im always looking for a new thing..

Any updates on your diff set up Ken? Inquiring minds want to know!!!


Thanks...