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General Information => General => Topic started by: burn_your_money on April 03, 2013, 07:59:49 pm

Title: 010 diff swap. Torque convertor?
Post by: burn_your_money on April 03, 2013, 07:59:49 pm
Ok, the diff blew on my mom's 010 (ATF got in the diff fluid and the bearings are totally shot. I picked up a low mileage unit but it's off a gasser and the diff is a different ratio. I'm planning to just swap the diff onto the tranny. However what I don't know is what torque convertor to use.

What is a torque convertor matched to? Engine? Tranny? Diff? All 3?
Title: Re: 010 diff swap. Torque convertor?
Post by: 8v-of-fury on April 03, 2013, 08:11:32 pm
EQ           2.55   1.45   1.00    3.76   
TB,TC,TCA   2.55   1.45   1.00    3.57   
TF,TK           2.71   1.50   1.00    3.41   
TJ           2.71   1.50   1.00    3.12    1.8L Gasoline '85-'87 (Tq Cv - K)
TL           2.71   1.50   1.00    3.41    1.6L Diesel (Canada)'85-'87 (Tq Cv - U)
TNA,TN   2.71   1.50   1.00    3.41    1.8L Gasoline '85-'92 (Tq Cv - K)

I think Torque converters are usually matched to the engine no? You got TJ I assume?? It should lower cruise by like 200rpm too.
Title: Re: 010 diff swap. Torque convertor?
Post by: RabbitJockey on April 03, 2013, 08:18:44 pm
Tj is not very common.  I think the torque converter is matched to the engine but I do know that the diff will effect the stall speed, either way I don't think I'd worry about.  Make sure u grab the speedo gear to match your diff
Title: Re: 010 diff swap. Torque convertor?
Post by: burn_your_money on April 03, 2013, 08:27:14 pm
I did manage to score a TJ! My math says 300 less RPMs on the highway! It almost makes it worth fixing the rest of the car, or swapping this tranny into the Passat instead of the 096.

I'm glad you guys are saying engine because I didn't get a torque converter with the tranny. Or a speedo gear for that matter, but the speedos always been off by about 15% anyways.
Title: Re: 010 diff swap. Torque convertor?
Post by: RabbitJockey on April 03, 2013, 08:27:53 pm
Also pretty much any gas diff will be an upgrade gearing wise except old rabbit junk
Title: Re: 010 diff swap. Torque convertor?
Post by: burn_your_money on April 07, 2013, 06:54:05 pm
Turns out I already had a TH transmission. It has a 3.13 final so I'm going 0.01 taller. Yippie ::) Oh well, it will mess less things up I guess.

Does anyone know what would cause the "tranny" to make a high pitched grinding/squealing noise when cranking? It only does it when cranking and I tried 2 different starters with the exact same results. I tried shimming the starter out more but that made a worse different sound so I put it back.
Title: Re: 010 diff swap. Torque convertor?
Post by: RabbitJockey on April 09, 2013, 10:23:56 am
Turns out I already had a TH transmission. It has a 3.13 final so I'm going 0.01 taller. Yippie ::) Oh well, it will mess less things up I guess.

Does anyone know what would cause the "tranny" to make a high pitched grinding/squealing noise when cranking? It only does it when cranking and I tried 2 different starters with the exact same results. I tried shimming the starter out more but that made a worse different sound so I put it back.

are specs for a th in one of the bentleys?  no idea about your odd noise.
Title: Re: 010 diff swap. Torque convertor?
Post by: burn_your_money on April 09, 2013, 02:07:41 pm
Yes MK1 bentley diesel. It's 82-84 with TD engine 3.13:1 (final) 2.71:1 1.50:1 1:100 for TG and TH
Title: Re: 010 diff swap. Torque convertor?
Post by: srgtlord on April 10, 2013, 12:34:59 pm
Hmmm if I remember correctly it is possible to seat the torque converter incorrectly. Not sure if that would cause the noises you are hearing though.
Title: Re: 010 diff swap. Torque convertor?
Post by: burn_your_money on April 10, 2013, 05:59:50 pm
The bushing in my torque converter was way out of spec. I replaced it today. I hope that was the issue.
Title: Re: 010 diff swap. Torque convertor?
Post by: burn_your_money on April 14, 2013, 12:24:06 pm
The bushing in my torque converter was way out of spec. I replaced it today. I hope that was the issue.

Seems to be the case. Yippee. No more scaring everyone in the parking lot when the car is started. It also appears that 120 indicated is only 100. That's going to mess some things up. Oh well. At least it runs.
Title: Re: 010 diff swap. Torque convertor?
Post by: RabbitJockey on April 15, 2013, 04:44:38 am
maybe if you're lucky you can still get the correct speedo gear at vw?
Title: Re: 010 diff swap. Torque convertor?
Post by: hillfolk'r on April 22, 2013, 08:22:37 pm
I thought my older mk2 bentley book listed stall speeds and codes for converters? If it wasnt a list it was in the auto trans section.