727 low gear set

Does anyone make a gear set for a 727 that 3.00, 2.00, and 1.00?
A friend has this done about 20 years ago to a TH400, so he could run a mild gear out back, and still have the multiplication.

This is going into a 4600 wagon, 526 stoker, currently has 3.73's.
i'd like to go down to 3.23's for highway driving, but would like to keep the tq multiplication. This is a '65 cable shift trans, a GV is out of the equation.

Your 526 Is the TQ multiplier! It will do great with a 3.23 --just try it!

I expect you would have to go with the 904 lightwight internals and case mods to be able to do that with a 727. Not really a street combination.

The low gear set is 2.77 1st. I'd just install the 3.23. My old race car (498, 3450lbs, 10 teens) ran exactly the same with a 4.10 and a 4.56.
Doug

Call Dave Smith at Pro Trans (661-940-7400) to see if he makes a low gear set like that

My concern, for wanting to do this, is the weight.
I see plenty of strokers in lighter cars with 3.23’s, but not a car that weighs 4,600lbs.

My '60 NewYorker at around 4300-4400 lbs with its 496" stroker and longram intakes drives great with the 3.23 gears in the rearaxle.
Stock convertor in the ('64) PB-transmission.
Pulls like a freight train. Even with a tune that still could be improved.

I ran the car with 3.90 gears few years ago to the track and made some runs but the engine liked the longer gears much better.

What are you running for a converter?

If it is anywhere close to being right for your current combo you might only lose a few tenths going to 3.23's.

It should still have no problems embarrassing Porsches.

Kevin

I run a low gear set in my 4100 tank. I 60 around 1.42-1.44 on motor with a 9.5” converter. I run a 30” Radial slick and a 4.30 gear set in my Dana.
Getting a big car to move quick is different than moving a small car. I run a solid roller 268/276 and go through the traps around 7000 at 132 and change. 10.14 is best I’ve run on motor. Big cars can move. Takes a bit more planning and strong parts. Overkill on parts LOL.

I have heard that some of the 727 out of motor homes have a low gear set. Might be worth looking into.

I've never heard of any one on here finding any of them
I believe Direct Connection started making and selling them after Mopar went bankrupt the first time and only sold them through the direct Connection parts dealers. I bought and use one set in my old M.W. stocker, it liked it

No 727 ever came from the factory with a low gear set.

WRT 3.00, 2.00, and 1.00

If there were a 3.00:1 low gear, 2nd would be closer to 1.60.

With that many cubes I would be tempted to try a 2.96 rear gear, as long as you have a good converter that has a decent stall rpm. I only ran .20 slow (10.40 on a 10.20 dial) accidently leaving in second gear. That is an SLR of 5.9 (4.10x 1.45) versus 7.2 , a 2.45 and 2.96 combo.

I'll have the car out this weekend, if the weather is decent.
I've never bothered to check where the converter actually stalls. Am i looking for brake stall or flash stall?
It's a manual valve body, so to check flash stall, just be in third at about 20mph, then nail it?

I live in an area with lots of stop and go driving, around town lights, etc. I usually just leave it in drive around town, and come off a stop easy. it's a pain to keep pushing buttons all the time!