Jackrabbit41 Posted August 3, 2015 Posted August 3, 2015 What fluid should I put in my ford 8.8? Should I use a gasket, or the make your own gasket sealant? I've watched some videos on how to weld the tubes to the housing, does this sound right? Preheat the housing (I don't know how Much), weld 2-3 inches at a time changeing sides and spots each time. Let cool slowly by wrapping in blankets or towels.
87Warrior Posted August 3, 2015 Posted August 3, 2015 Ford recommends 75w-140 these days. Make sure it has the limited slip friction modifier in it. I see no reason to use anything but RTV on the cover.
Jackrabbit41 Posted August 4, 2015 Author Posted August 4, 2015 Ford recommends 75w-140 these days. Make sure it has the limited slip friction modifier in it. I see no reason to use anything but RTV on the cover. I know i have a lsd but what is a friction modifier?
Lee21490 Posted August 4, 2015 Posted August 4, 2015 Ford recommends 75w-140 these days. Make sure it has the limited slip friction modifier in it. I see no reason to use anything but RTV on the cover. I know i have a lsd but what is a friction modifier? It's an additive for gear oil for axles with LSD You can either buy oil WITH it, Or buy a bottle of it seperately & add it yourself. RTV silicone works great for a gasket.
Jackrabbit41 Posted August 4, 2015 Author Posted August 4, 2015 Ford recommends 75w-140 these days. Make sure it has the limited slip friction modifier in it. I see no reason to use anything but RTV on the cover.I know i have a lsd but what is a friction modifier? It's an additive for gear oil for axles with LSD You can either buy oil WITH it, Or buy a bottle of it seperately & add it yourself. RTV silicone works great for a gasket. Did you weld your tubes to the housing?
Lee21490 Posted August 4, 2015 Posted August 4, 2015 Ford recommends 75w-140 these days. Make sure it has the limited slip friction modifier in it. I see no reason to use anything but RTV on the cover.I know i have a lsd but what is a friction modifier?It's an additive for gear oil for axles with LSD You can either buy oil WITH it, Or buy a bottle of it seperately & add it yourself. RTV silicone works great for a gasket. Did you weld your tubes to the housing? Yea, We just cold welded it & did a few 1" welds
Jackrabbit41 Posted August 4, 2015 Author Posted August 4, 2015 Ford recommends 75w-140 these days. Make sure it has the limited slip friction modifier in it. I see no reason to use anything but RTV on the cover.I know i have a lsd but what is a friction modifier?It's an additive for gear oil for axles with LSD You can either buy oil WITH it, Or buy a bottle of it seperately & add it yourself. RTV silicone works great for a gasket. Did you weld your tubes to the housing? Yea, We just cold welded it & did a few 1" welds How are they holding up?
Lee21490 Posted August 4, 2015 Posted August 4, 2015 Ford recommends 75w-140 these days. Make sure it has the limited slip friction modifier in it. I see no reason to use anything but RTV on the cover.I know i have a lsd but what is a friction modifier?It's an additive for gear oil for axles with LSD You can either buy oil WITH it, Or buy a bottle of it seperately & add it yourself. RTV silicone works great for a gasket. Did you weld your tubes to the housing? Yea, We just cold welded it & did a few 1" welds How are they holding up? They look fine, Havent had an issue with the rear axle since i swapped it.
docivy Posted August 4, 2015 Posted August 4, 2015 Ive got an 8.8 in my tj that I cold welded with some nickel rods and I have beat that thing. No problems yet, it is trussed though
Jackrabbit41 Posted August 4, 2015 Author Posted August 4, 2015 Ive got an 8.8 in my tj that I cold welded with some nickel rods and I have beat that thing. No problems yet, it is trussed though I'm mig Weldin it, I'm just gonna go with some .30 wore and see what happens. What thickness do talk yhink it's around?
docivy Posted August 5, 2015 Posted August 5, 2015 Tubes are .25" housing is around the same. Don't make big wide welds and tap on the cast with a hammer as it cools
xjrev10 Posted August 5, 2015 Posted August 5, 2015 I'd preheat a bit... 200-300'degrees. Weld and post heat once or twice. Or if possible bury in sand.
Crash Posted August 6, 2015 Posted August 6, 2015 Lube locker gasket. IF you get good synthetic diff fluid (most will say no modifier required), friction modifier is not necessary. If you run non-synthetic oil, the modifier is definitely needed. I am currently open/open in my XJ, but I use Amsoil 75w-110 front and rear. It is a full syn that does not require additional modifiers. I will be using the same in my 8.8 that I swap into my MJ.
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