I have welded the axle tubes. It has richmond gears. Everything else is stock. However I was wondering how strong the stock axles are? Do I need to upgrade to 30 spline? Can I just get a spool for the stock axles? Can it hold a 6.60et in the 1/8 mile?

I know of at least 5 people at the local track running a 8.5" 10bolt rear in the 6.80-7.00 range in the 1/8 mile with no special mods not even c-clip eliminators.
But, the weakest link in the 10&12 bolt rearend seem to be the C-clips, and many of the bigger tracks won't let you run a c-clip rear if you are running slicks.
When money allows by all means upgrade to heavier duty axles and make sure you purchase ones that eliminate the c-clips, especially if you plan to run those numbers and your car is going to see alot of track time.
Yes, you can run a spool with stock axles.

And there's something about doing a c clip eliminator with Ford ends that really helps out in the oil leak department. You deffinitly have to ask about it.

Yes, clip elminators usually aren't the best way to go. Usually, aftermarket axles will have a provision to where you can press on a Ford-style bearing. The housing ends will have to be removed and replaced with the Ford-type. All this stuff is available through Mark Williams, Strange, etc. It really is the way to go, and the price is worth it.

TNT,
Try going down to the transmission and rear end section and post that question. There is a guy by the name of big gear head there. He seems to know his stuff when it comes to rear ends.
Good luck , Mitch

Originally posted by Chevymetal:
I know of at least 5 people at the local track running a 8.5" 10bolt rear in the 6.80-7.00 range in the 1/8 mile with no special mods not even c-clip eliminators.
But, the weakest link in the 10&12 bolt rearend seem to be the C-clips, and many of the bigger tracks won't let you run a c-clip rear if you are running slicks.
When money allows by all means upgrade to heavier duty axles and make sure you purchase ones that eliminate the c-clips, especially if you plan to run those numbers and your car is going to see alot of track time.
Yes, you can run a spool with stock axles. Are the track officials gonna check you to see if you're running c clips?