4L60 into D series

Tonka Toy

Tonka Toy

Member
I want an overdrive trans in the Travelall, and the 4l60 seems to be the one to use based on the adapter kit available. I'm interested to know if anyone else has done this swap, and how did it go? With my divorced 205, I'm wondering if I could use a 2wd transmission, or if I'm looking at having to use a 4wd one and convert it over? Thanks! :)
 
Sorry, no I didn't. Since there was no response, I assumed that I was "pioneering" again. And between a busy work schedule and family commitments, I don't get as much time out in the shop as I'd like, unfortunately. I definitely need an overdrive of some sort. And the GM transmission seems to be the only automatic one can swap in, with the help of the adapter of course. But I haven't been able to spend the time to sort it out.
 
I know how time can get away, especially during the summer. I picked up a 700r4 adaptor plate the other day, just a random cl find about an hour away, now I'm browsing for a rebuilt trans, I imagine a new driveshaft will be on my list too. The adaptor plate seems simple enough to replicate, it's the torque converter plate that looks more complicated. It's an advanced adaptors package, but when I called to ask if their 345 and 392 plates were the same the tech guy at aa said to talk to their distributor, I got the impression that they make a lot of different products and some of the older ones don't stay on their radar too long.
 
I am putting a 4l60e in my 67 800. I found a low mileage 2wd transmission, then purchased a 4wd output shaft off of ebay for $35. The local tranny shop didn't charge much to change it out. Don't let the 2wd tranny scare you off if it is a good deal. Make sure to look for a k case as they are from trucks and some cars such as police cruisers.

Don't know much about the divorced case. I am using a novak adapter with Jeep Dana 300.

Hope this helps.
 
bo185 said:
what are you using to control it?
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I am also installing a 5.7l Chevy TBI motor with a pcm that will control fuel injection and tranny. Tci has a nice stand alone transmission control unit that would make things very easy for a stand alone install. It is not cheap but would be a great way to go for control without the pcm. I have considered eliminating the transmission control on my computer and using it myself but cost will probably prohibit that since I already have the pcm.
 
IH-parts-ron said:
...it's an advanced adaptors package, but when I called to ask if their 345 and 392 plates were the same the tech guy at aa said to talk to their distributor, I got the impression that they make a lot of different products and some of the older ones don't stay on their radar too long.
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I'm just wondering what could possibly be different. The engine bell pattern is identical for all the sv8 engines regardless of displacement. Hp and tq output differences between the 345 and 392 are not that monumental, so I would think this is a case six of one and a half dozen of the other.
 
scoutboy74 said:
I'm just wondering what could possibly be different. The engine bell pattern is identical for all the sv8 engines regardless of displacement. Hp and tq output differences between the 345 and 392 are not that monumental, so I would think this is a case six of one and a half dozen of the other.
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Its not so much the motor as the trans.

There are three differences for the 4l60e as far as the adapter goes. The early units with the one piece bellhouse. Then 97-up two piece bellhouses. Those are the same as the 700r4 units as far as the apater is concerned. Now the later ls 4l60e's use a different torque converter . The hub is longer and uses a metric spacing on the bolts. And will not work with the earlier adapter. So you would need to redrill the adapter for the converter bolts and open the hub (center hole up some) but the one piece 1995-down 4l60e should work just fine especially with a TBI pcm the late ones are pwm units and be harder to work with for TBI.

The adapter would need to be different d for the 4l80e as well as it uses 6 bolts to old the flex plate to verter.
 
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