VWDiesel.net The IDI, TDI, and mTDI source.

General Information => Troubleshooting => Topic started by: bryanbryan89x on July 30, 2006, 10:01:00 am

Title: transmission question
Post by: bryanbryan89x on July 30, 2006, 10:01:00 am
I got a 4 speed transmission from a jetta, and i put it in my 1981 diesel rabbit car that was origionally a 5 speed, and i put a new clutch in it too.  I got everything back together, started it up and the thing grinded real bad inside the bell housing, and i opened the thing in the top of the bell housing and a bunch of aluminum shavings came out.  I used the fly wheel that was originally on the rabbit car,  also the clutch petal is really hard to push down.  any ideas? did i use the wrong trans?

The code on the trans that came out was: FF 16010
The code on the trans i put it was : GC11129
Title: trany
Post by: fatmobile on July 31, 2006, 12:40:34 am
You are going to hate a GC trany hooked up to a diesel. You'll be screaming just to go 65mph.
 It will bolt right up though, shouldn't be any aluminum grinding off due to the swap if done correctly.
Title: transmission question
Post by: bryanbryan89x on July 31, 2006, 03:01:34 pm
Do you think an FN transmission out of a rabbit GTI will work?
Title: transmission question
Post by: burn_your_money on July 31, 2006, 03:04:11 pm
It will definitly bolt up.
Check out gear ratios here, www.scirocco.org/gears
You'll want one like a 4S, AGS, FO etc. Basically one with a 0.75 5th. I have a 4 speed on my rabbit and am removing it ASAP. It makes the car's acceleration so much slower and it's pretty loud on the highway. Mine is a 4A so highway speeds aren't that bad

If you do keep the 4 speed, you need the 4 speed shifter linkages, otherwise a linkage will pop off and you'll only have 2nd and 4th. Ask me how I know  :(
Title: transmission question
Post by: bryanbryan89x on August 02, 2006, 02:26:28 pm
The FN trans has a 0.71 5th gear.  Think this will be too doggish on the highway??
Title: transmission question
Post by: burn_your_money on August 02, 2006, 03:04:24 pm
I just remebered that I had heard that there is an error on that chart regarding the FF and FN. Apparently they don't have the same ratios.

I hope the 0.71 isn't too bad on the highway as I plan on installing one this weekend. At least with a 5 speed you can downshift at highway speeds
Title: transmission question
Post by: RabbitJockey on August 02, 2006, 03:41:00 pm
i have an ff and i feel the gearing is very well matched to the car, sometimes gears could be lower, but it's not big deal.
Title: transmission question
Post by: bryanbryan89x on August 15, 2006, 09:16:44 pm
So anyways i bought a FN transmission off of ebay thinking i was getting a great deal by paying 160 dollars for it, as oppossed to the junkyard (parts place in auburn hills) who wanted four hundred dollars.  But i got f**ked over on the deal, there were bolts broke off in the trans, and he had a 100mm drive shaft flange on one side??? I need to change it back to 90mm and i also need to replace that seal, where can i find one of those seals at???
Title: transmission question
Post by: burn_your_money on August 17, 2006, 03:02:30 pm
pythonparts.com perhaps? if you need another tranny I'll sell you one of mine (I think I have 5) for $100. I even have one that came from a diesel