just would like to know if my 83/4 will be okay for a while in my duster when i get my motor done for the duster...plan on 750hp with ladder bars on stock frame rails. right now the car has moser axles and will geta spool,back brace,set of good gears..also i plan to bring the weight down on the car as time and money comes..thanks mike

You will be fine if you footbrake. Check your gears every 50 runs. If you are using street gears, the ring gear will start chipping teeth off at 100-150 runs.

If you are using a trans brake, you better have pro gears.

no plan to run a t/b just foot thanks for the tips

MW caps would be good insurance.

I would install a billet cap.

i forgot about those thanks guys..where can they be had at??

He is talking 750 HP. He will find some weak links at that power level, stock blocks, street gears, 1/2" studs, stock 727 parts, etc.

good luck, heres 610 horse at the motor , with 2800 pounds, Tim

another

here"s a pic of both my car and my Brothers car. both with an 8 3/4, and both low nines and 1.24-1.31 60ft times. You will be just fine with a your rear. But in my honest opinion, if you havent spent the money on axles and spool etc... yet. Why spend it twice. Sell your rear and put it in a dana, and never worry again.

my Brothers car

by the way, both the above cars have 8 3/4 rears in them, with all good parts in them, with lots of runs on them.

thanks guys for all the info so what year trucks do i need to be looking at for a dana.. i have (83/4) axels now which ive had for a few years in my small block combo...so ill like to do it 1 time and be done....since i have to do the backend anyway just a little more time and work lot or money....

You might be suprised what it will cost to put a dana in your car. If you have to buy a spool and gears and axles, and set-up cost. You are already well over a grand. Just sell your rear for a couple hundred bucks and then call dr diff or moser and ad 2 or 3 hundred and get a new one already set up and ready to go.
Or, for ex, I just picked up a 4.10 dana with a posi for 250 bucks, and go from there.
I can get them for that all day around here.

thanks by the way i love those darts the green 1 is up there...any info on the combo youd share???

sure! The green car is my Brothers car. It is a small block. Both our cars are naturally aspirated too.
His motor is for sale on race parts right now if you want to see the combo!

We both have full int, stock wheel tubs, and cars are streetable, but not driven on the road,lol. Both have 727's and 8 3/4's.
Good luck with your car, sounds like it should run good.

thanks man if it runs as good as your car ill be more then happy

Just be patient, and it will come. There is always little things that you can do to pick up a little at a tim.
Our Mom and Dad bought mine and my Brother's cars for us when we were 10 yrs old. So we have had them for quite awhile,lol. Been running these cars for a LONG time. Tinker here, and tweaking there, lol.