Rip It

How long does it take to pull the tranny and install new synchros?

jasonlp

I was told the whole job takes about 18 hours.

Rip It

My tranny has 160k miles on it, a daily driver, only issue is 2nd gear synchro is not performing very well.
I usually double clutch, it makes no noise except going into 2nd and is smooth otherwise. My question is what do u suggest replacing while in there keeping it on a tight budget Would you replace 3rd synchro that has no issues.
Also my car shifts 50% easier in the rain, makes me believe there's a lack of lubrication somewhere and the water is doing that job. Is there places in the shift linkgage that require lub that would improve shift ease?

333pg333

If water is providing the lubrication for your gearbox then I think you may have more probs than 2nd gear syncro!

944obscene

lol. I think I know what he means, but the water shouldn't effect shifting. Working on a transmission isn't the hard part. Its getting to it and getting it in/out of the car. I would have someone that's been around one help me though. I don't like hopping on new projects without some guidance. Just a comfort thing. I have worked on GM transmissions, and even an automatic is easy to figure out after looking around it for a little bit.

333pg333

If you have to start dealing with shims and preloads etc you should know what you're doing. IMHO.

Oddjob

Not the case on a 944 trans - in and out is the easy part.

944obscene

Ah. Well, I don't have experience with a 944 transmission myself. Just from what I've been around, that seems to be the case. Of course, I didn't think about the transmission being the differential as well.

Oddjob

Trans rebuilding on a budget? No such thing...

If youre paying to have someone do it, labor is the major expense. Synchros are cheap, getting to them is the $$$. 1st and 2nd are on the pinion shaft, so do those together. 3rd and 4th are on the input shaft, so those dont "have" to be removed if you only want to fix 2nd. But at 160k, you really should also consider replacing the input, diff, and pinion bearings, which requires re-setting backlash and preload (shimming) and unfortunately is quite labor intensive if done correctly. A full refresh "while youre in there".... but only at a shop that knows 944 transmissions - otherwise you are better off leaving it alone.

Jeff N.

I had a local shop in the Seattle area do the following on my gearbox:

- LSD clutch rebuild
- new pinion bearings
- new second gear syncro
- new seals

I was ready to the carrier and input shaft bearing but the owner said he inspected them and felt they were fine and really didn't warrant replacement.

It was about $1200 for the work which I thought was quite reasonable given the options. I did the tranny pull and install.

Jeff

anders44

I need to change 3rd gear syncro on one of my trannies, ohh the joy

schwank

I am having a trans rebuilt by a top notch shop. 2 days labor total. That cheap compared to the cost of parts, like a new LSD unit.

Ramen can be tasty, right???