transmission regearing

[Kern Dog]

904's were 2.70 in 1st and 1.54 i. 2nd. That pretty much the same split as the 700r4 and nobody complains about the 904's. If memory serves me the later od's such as the 500 and 47rh style trans that alot of guys swap to are a 2.74ish 1st and 1.5 2nd.

No, the 700 had a 3.06 then a 1.62. That is a 1.44 ratio drop. The A-999 version of the 904, the one with the low gear set was 2.74 and 1.54. That is a 1.20 ratio spread. There is enough difference to notice.

[fy469rtse]

John , thanks to your knowledge
I've learnt something new , and its only 7.30 am over here , did'nt know there was an aftermarket ratio gearset for 727's
already finished my trans and in car ,
sources for it ? i did a quick google and couldnt find supplier's, so must be a few select performance places,
I'm thinking that ratio will give it longer legs in the final 120 + feet,   

[chargerbr549]

http://www.aandatrans.com/Default.aspx

http://smrtrans.tripod.com/smrtransmissionsintro/index.html

Here are a couple of places to get the low gear sets for the 727, I thought maybe Coan Transmissions had them also but not sure.


I'm pretty sure John Kunkel would know of other places where to purchase them.