Will installing a set of 3.73's be too much torque for that 3650 tranny? I heard it's the worst one (tranny) for a mustang, can't handle too much, will it last? I have an Aluminum drive shaft, but I don't think that will make any difference. I know the TKO tranny would be the way to go, but my budget just went south, I crashed my Monte Carlo Dale Earnhardt signature series car and now need to repair it. I know, wrong site for sympathy for a bowtie...

I know, I just found out this is the wrong site, sorry.

 

that's true, i know guys that have 3.73 gears, those trannies and they beat the car like they stole it and have no problems.

 

the 3550 is by no means the worse manual tranny for mustangs

i believe its

T5 T45 T3550 T56, in order from weakest to strongest mustang trannys

 

I think all of those trannys have good ones and bad ones. My 95 GT had a stock T-5 in it and it lasted all the way till i sold it back in 2004, had 80K miles on it and that's beating on it at the track or street. but i've seen my friends T-5 take a dump fast. Same as all those others. some you here more often than others though.

 

The 3650 is the strongest 5speed in the mustang yet (note how i said 5speed).

 

for real.. put 4.10s in there lol

 

no problems with running the 3:73 gears

 

3650 is quite strong and should provide a good long service life even with gears and a supercharger much less with just gears. They've been known to be kinda tempermental but I think that was early production line glitchiness and not a statement of actual vs. rated capacity.

I've beaten mine and after the first 3 replacements I've managed to get a good one which has lasted nearly 40K of pure whoopin.

 

Thanx guys, now I can concentrate on other things.

 

Installing the gears does in no way change the amount of torque applied into the trans. It only multiplies it at a faster rate in the rearend in comparison to the engine's rpm. Your engine will produce the same, really about 1-2% less, amount of overall torque, being able to bring it into play much faster and lower in the rpm band. Someone above suggested installing 4.10:1s, The overall difference in the two is minimal at best so far as rpm -vs-highway driving, if this is a concern for you, only about 1-200rpm in 5th gear. I prefer the higher, lower numbered, gears in the 2v. Try the 4.10:1s, I believe you'll be happiest with those. The stock tr3650 can and has handled over 400ftlbs of torque. This was rated at the flywheel, I would upgrade if you plan to produce this much power but know it's not an issue. Remember to do your maintenance, very important.
P.S.I'm not dfroster (David) just using his computer, so anybody who disagrees with the following statement, take it up with me. In closing, I'd like to commend you guys on a very nice board.

 

I agree.Don't even waste your time with 3:73's unless your going with a power adder and even then I say stay with the 4:10's.

 

I'm going with the procharger in the off season, that's why I chose the 3.73 gears.