JM0523

Ok so i have 3:23's now, i bought the Motive 3:73's and rebuild kit for my rear end, i hear its about a 4-6 hour ordeal to put them in, should i just resell them and not worry about it or would it make that much of a difference in the overall performance of my car and be worth while to do, most of the driving i do is around town and i quite often get into little 30-70 mph roll races with ignorant Honda drivers, who all has done this swap and do you feel like it was a worth while thing to do? what kind of 1/8 mile ET gains am i going to see?

Joshiedoom

iTrader: (4)

.1-.3 ET gain if that. Get a stall and a tune

FASTEDDIE Z

iTrader: (4)

From 323 to 373 ,, eehhh ,1-2 tenths in the 1/8 , tops . Probably not worth it . Take a look
https://ls1tech.com/forums/gears-axl...t-have-qs.html
A stall and tune will do wonders for an automatic though .

blk/slvr02ss

iTrader: (21)

I would just get a 3:42 rear out of a M6 car but a stall will help alot.I only run 3:23's in my car and get 1.6's 60ft.

jimmyblue

iTrader: (11)

I went from 3.23s to 3.42s and the only thing I got out
of it, was even less ability to hook up. I'd say a good
converter will do a lot more for you, and get the dumb
factory shiftpoints straightened out for a more drivable
(pedal proportionate kickdown) setup.

ULTIMATEORANGESS

iTrader: (4)

not a big track difference but a big SOTP difference. especially mid range and top end.

thunderstruck507

iTrader: (18)

not worth it

RPM WS6

iTrader: (3)

I wouldn't bother. You'll see about .1 ET reduction.

Sell the gears, buy a stall. I never understand why people want to do gears before a stall. I wouldn't even swap out 2.73s before I did a stall.

Also, "3:23, 3:73" etc. are not correct. It's 3.23 and 3.73. If you want to use the ":", then it's 3.23:1 or 3.73:1.

NoTractionLS1

Just get the 3.42 out of a m6, this is not worth it IMO!

RPM WS6

iTrader: (3)

Too much labor for too little gain. 3.23 to 3.42 will likely show zero real world benefit, but you'll have to do the labor to swap rears and you'll still need tuning for shift point and speedo correction.

01ssreda4

iTrader: (96)

I believe an aged 10 bolt freshened with a rebuild kit, behind an auto will last a long time. The stock bearings get awfully sloppy after some miles, and I have seen them go out with hardly any abuse. So, yes IMO, its worth it for the gear swap and freshening the rear end at the same time. Nice tight, new bearings will take a lot more abuse.

buddyleex

iTrader: (4)

It's not worth it imo, and won't your launches or rather 60' times be slower?

SMALLBLOCKHERO

iTrader: (2)

its worth it. if anything....the seat of the pants feel will put a smile on your face. your 60 will only drop a lil but it makes for fun street driving. and with the 4L60 it puts the car into its powerband quicker. you already have the parts...so stuff that **** in there and have some fun. and start saving for rear tires.

JM0523

Why would the 60 drop?

SMALLBLOCKHERO

iTrader: (2)

the car will launch a little harder due to torque multiplication of the gear set. not a lot , but at least a little.

00blueLS1

Puttin some gears in has it pros an cons, I believe that most of them have been posted already... I got 373s and I also got a stall, since you have the gears I'd put em in but you most deff want a stall soon they are high but worth it an alot of fun. When it comes down to it, its your car, your choice

black_phoenix

iTrader: (27)

good thread, i was thinking about going from 3.23 to 3.73, but my mind is changed now...

RPM WS6

iTrader: (3)

Put that same money into a stall if you don't already have one. If you do, then there are still several other mods more worth while than a 3.23 to 3.73 swap for similar money (like headers, drag tires for the track, suspension, etc.)

MonmouthCtyLS7

iTrader: (6)

U should notice about 2 tenths...If I had 323's as opposed to the 342's id probably make the jump myself.

RPM WS6

iTrader: (3)

I think you'd be lucky to see that much gain. There are guys who do 2.73 to 3.73 and only see .2 drop in ET. The 3.23 to 3.73 will be even less on average.