monday i am starting the engine build for my sbc swap...im projecting 400+hp......just a little backstory....89 yj,9 inches of lift with 35'' at's,1/2 ton axles...pretty much know these are not going to hold.....i have a chance to pick up a set of dana 60's for a good price....will these hold the power?...planning a th350 trans(built) and a dana 300 case......
couldn't resist, just jokin with ya. dana 60 is a good choice for your application. no one asked me, but 4" body lift is a little crazy
"The danger to America is not Barack Obama but a citizenry capable of entrusting a man like him with the Presidency. It will be far easier to limit and undo the follies of an Obama presidency than to restore the necessary common sense and good judgment to a depraved electorate willing to have such a man for their president." http://mybroadband.co.za/photos/data...re_cowbell.gif
Ive heard of people jumping their jeeps with D-60s and blowing tires but going right back to the trail
__________________ Mine: 1987 YJ 4.2 5spd soft top
98% of people when they are about to go into the ditch say "oh shit!" The other 2% are Minnesotans and when we are about to go into a ditch we say "Hold my beer and watch this shit!"
Most 60 rears are 30 spline and alot of the fronts are 35 spline. But remember it is not only the spline count that matters, it is also the thickness of the shaft. A 60 in any form is stronger than what the he has, and most can be built to suit your needs. Not many are left alone and ran stock so he is probably going to be spendingf money on the upgrades anyway, just get a good platform to start with and go from there.
There are certain model vehicles that really did come with 60's that are not valuable for what we do. Also if he's going to go with a 300 then is it going to be flipped or standard that has a lot to say about needing ford or dodge 60's for pumpkin sides. And yes most rears did come 30 spline which means that it's going to have to be bored out to hold 35 spline etc. Some late model duty fronts aren't as desireable because they moved the diff further to the outside etc.... Really to make a good statement on a specific set of axles we need to know what they came out of, as some of the others have stated.
President - Arizona Off-Highway Vehicle Coalition
Vice-President - ASA4WDC
Arizona Rock Rats
Yes I agree some are less desireable depending on how it will be used, here is a link to Bill Vistas Dana 60 bible, lots of good info on several different types of Dana 60 axles. It mainly deals with the fronts but has some info on the rears as well, you can also get the capacities for several of the axles there.