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4L60E to Th350 swap... Gearing Question?

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Old 09-15-2011, 11:28 PM
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Default 4L60E to Th350 swap... Gearing Question?

I was planning on swappin a T56, but it turns out I cant get the T56 Parts Car anymore...

Is it worth it to swap a Th350 into it? I want to put a manual valve body in it with a Ratchet shifter (Six Speed Center Console with Shift boot)

What all is needed? Just the trans and converter? I can use the stock crossmember by modifying it correct? I read somewhere I need a different dipstick tube, any part #'s would be helpful?

Gearing Question: I have 4.10's in the A4/4L60E now and I get about 12mpg average... Would 3.42's be about the same, better or worse with a th350?

Let me know,

Thanks in advance,

Kyle
Old 09-16-2011, 04:55 AM
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just put a shify kit in the 4l60 with full manual
Old 09-16-2011, 05:23 AM
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Originally Posted by Boostedhatch
just put a shify kit in the 4l60 with full manual
Is it possible to get a full manual in a 4L60E?
Old 09-16-2011, 11:24 AM
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Of course it is. Rossler makes a black box for the 60/80e's. Jake makes one for 80e's I'm not 100% sure if it will work on a 60e, but I know Rossler's 60/80e black box is the same unit for either so I'm thinking his will work also.
Old 09-16-2011, 11:46 AM
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Originally Posted by SpeedFreak123
I was planning on swappin a T56, but it turns out I cant get the T56 Parts Car anymore...

Is it worth it to swap a Th350 into it? I want to put a manual valve body in it with a Ratchet shifter (Six Speed Center Console with Shift boot)

What all is needed? Just the trans and converter? I can use the stock crossmember by modifying it correct? I read somewhere I need a different dipstick tube, any part #'s would be helpful?

Gearing Question: I have 4.10's in the A4/4L60E now and I get about 12mpg average... Would 3.42's be about the same, better or worse with a th350?

Let me know,

Thanks in advance,

Kyle

I have done this swapp in my 2002 Camaro. I am not sure about using the stock cross member because I changed mine to the BMR with the torque arm connection. You will need a new dip stick. Mad man sells them on his site for the th350-th400. You do realize that going with a th350 you will lose the lockup clutch capability and your fuel milage will suck even worst. My car isn't a DD so I wasn't worried about it but this is something to think about. You already have the shifter in mind so you are on the right track but you will have to have it welded in place for it to be right and you will need a new shifter cable.
Old 09-16-2011, 11:52 AM
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Originally Posted by SpeedFreak123
Is it possible to get a full manual in a 4L60E?
Yes you can get them full manual. My concern with going with another 4L60E was having to rebuild it again within another year. After having 2 of them rebuilt at over $2,000.00 a pop this was no longer an option. So I contacted PTC and had them build me th350 with the lower first gear and a 8" 5000rpm stall converter. I also have 4.11 gears in my 12 bolt rearend so my cruising speed is around 60mph and 3500rpm..
Old 09-16-2011, 11:55 AM
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Originally Posted by Boostedhatch
just put a shify kit in the 4l60 with full manual
The problem is they still don't shift right when you do. With my th350 as soon as I get the shifter that things shifts with no issues.
Old 09-16-2011, 12:45 PM
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So eve if i put a 4L60E Full manual, there is still going to be some lag?
Old 09-16-2011, 01:40 PM
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Originally Posted by speedfreak123
so eve if i put a 4l60e full manual, there is still going to be some lag?
yep!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Old 09-16-2011, 03:32 PM
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So what gearing should I go with to stay about even with the 4.10/4L60E MPG?

Also, will the Th350 clear the O2's on my Pacesetter Longtubes?

How much can I expect to pay for a stock/not built TH350?
Old 09-17-2011, 05:30 PM
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Originally Posted by SpeedFreak123
So what gearing should I go with to stay about even with the 4.10/4L60E MPG?

Also, will the Th350 clear the O2's on my Pacesetter Longtubes?

How much can I expect to pay for a stock/not built TH350?
The Th350 will without a doubt clear the o2s...ran the exact setup in my 95 formula with Pacesetters and TD's.
Old 09-17-2011, 05:37 PM
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I had lag in my transgo shift kit for my full manual 4l80e. After switching to jakes valve body and black box for full manual operation the lag is non existent. It's in the valve body on these electronic tranny's that needs to be done right to not have any lag between the shifts.



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