8 3/4 diff. ID. And ratio question

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A Body 440 WHY NOT

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Hello all,
So I pulled out the center section, (489 ) and counted the teeth . It has 9 on the pinion and 43 on the ring. Sounds crazy high. Like 478-1. Diff is in fantastic shape and spins like velvet. Has the springs/post unit. Should I change out the gears, or try to trade it ? I am looking for 355 or 323. Haven't fully decided due to the fact that I haven't picked out wheels n tires yet. I am building a 69 dart with a fresh 440 /727 combo. BIG project.
Thanks.
 
Count again? 4.56 4.88? Never heard of a 4.78 44 teeth on the ring gear will give you a 4.88 and that's probably what you have. It would be easier to sell/trade your chunk for a 2.23 or 3.55 unit. Somebody would like your steep gear.
 
If you haven't set up gears before I can tell you their not easy to get right for a newbie. You need some specialized tools too. Sell it or trade it for what you want
 
As fishy68 said if you are not familiar with changing out gears, trade it off, or have a professional change them for you. If you change them out yourself, you are probably going to end up with a non serviceable chunk that is better suited for a door stop.
 
I have set up gears before. Prob missed the count by 1. Looks like 488 gears, posi unit. I will place an ad to trade . Thanks
 
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