so im getting my 9in in the mail here soon, i know i have the close ratio 4 speed top loader, im going to be putting in a 347, this is going to mainly be for the street but i am planing on racing it every once in a while, the housing is coming with 28 spline axels i wasnt sure if i should just get some 31 splines or exactly, any input would be appreciated thanks
When you say you're getting your 9" in the mail what does that mean, the whole thing with center section? You can't just swap the 31sp for the 28sp axles without changing the whole carrier(posi unit if you have one). The side gears are specific to the axle size/spline count.
its basically just the housing, it has not third member (pumpkin) its just the housing with the old axels they had for it they kept the 3rd mem.
Yes, you will need to match axles to whatever pumpkin you buy. As for 28 spline strength, I trust them. I had 4:10 gears with 28 spline axles in a vintage Bronco that I used to do some really hard off-roading in. Broke and twisted several driveshafts but never broke an axle.
yeah it comes with the 28 spline axels, and the drum brakes, i hear a trip to the local u pull it is coming up for some disc rear brakes here soon haa
I've broken enough 28 spline axles to know that I'll never run them again unless I know I'm NEVER going to use a sticky tire or race at the drag strip.
im thinking about it, i figured i didnt really need the third member yet due to no know what gear ration i needed yet so i figured id grab it up before i had to start hunting down another direct bolt it unit
John has a good point about drag racing and sticky tires. My application was off roading so you naturally get a lot of tire slip.
i just looking on currie enterprises website its not to much to upgrade them any ways maybe ill make something out of the other axles maybe get a rim or two and set up something for a bench grinder or something
