TH350 help
#1
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TH350 help
so, as in my WTF did i break thread, my 4l60e took a ****. I have a chance to pick up a freshened TH350 with trans brake and BTE 3800 N2O converter. The guy wants 750 for the trans and converter. Now, i read the sticky with the link to the swap, but I am confused as to what parts i need to get this trans to work. Where can I buy a new DS, or should I have mine shortened? What torque arm should I use? Should I buy a crossmember, or modify the stocker? What parts do I need to get the trans to link with the LS1 flexplate? What should I do about the PCM, do I just get the codes for the trans shut off? Thanks
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The driveshaft is going to have to be lengthened and a few sponsors sell them. You can do one of four torque arm setups- 1) buy the conversion kit from B&M and keep the stock ta. 2) Buy a crossmember with the relocation mount on it (BMR and UMI sell them) 3) Buy a ta that mounts in the middle of the car 4) Buy a tunnel mount ta from Jegs. I have a UMI crossmember and it is an awesome piece and is priced right. I also have a TCI flexplate that has a dual bolt pattern for a TH350 and 4L60E. I took all the ECM crap out of my car so I can't help you there.
#3
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Hello,
We will be glad to help you with the torque arm and crossmember.. we have a few different options I will post and go over below.
1. If you run a short tunnel mount torque arm all you would need is a transmission crossmember designed for the TH350, this can be seen here- www.umiperformance.com/2211
The short tunnel mounted torque arms can be seen here- All will work with any transmission/
www.umiperformance.com/2200
www.umiperformance.com/2201
www.umiperformance.com/2202
www.umiperformance.com/2203
2. We also offer a transmission crossmember with a built in torque arm mount for the TH350. This features the correct mount for the TH350 and has a integrated torque arm mount to mount the factory torque arm or any factory style aftermarket torque arm. This item can be seen here- www.umiperformance.com/2212
If you have any questions please ask. Thank you!
Ryan
We will be glad to help you with the torque arm and crossmember.. we have a few different options I will post and go over below.
1. If you run a short tunnel mount torque arm all you would need is a transmission crossmember designed for the TH350, this can be seen here- www.umiperformance.com/2211
The short tunnel mounted torque arms can be seen here- All will work with any transmission/
www.umiperformance.com/2200
www.umiperformance.com/2201
www.umiperformance.com/2202
www.umiperformance.com/2203
2. We also offer a transmission crossmember with a built in torque arm mount for the TH350. This features the correct mount for the TH350 and has a integrated torque arm mount to mount the factory torque arm or any factory style aftermarket torque arm. This item can be seen here- www.umiperformance.com/2212
If you have any questions please ask. Thank you!
Ryan
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The TCI flexplate comes with the Flexplate bolts and the spacer for adapting the converter. However, if your converter was built LS1 specific for a LS/TH350 car, you won't need this. But if you are using a standard old school SBC/BBC TH350/TH400 converter, you will need to put this spacer on.
#7
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The TCI flexplate comes with the Flexplate bolts and the spacer for adapting the converter. However, if your converter was built LS1 specific for a LS/TH350 car, you won't need this. But if you are using a standard old school SBC/BBC TH350/TH400 converter, you will need to put this spacer on.