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01-22-2012, 03:52 AM | #1 |
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Location: novinger, mo
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97 2wd tahoe tranny
I have a question in regards to replacing a tranny in a 97 2wd tahoe. will a 4l60e from a earlier model work ( 93-94 ) ? I have been told buy salvage yards this a 1 year specific (97) only. But I ask why and they just say its what computer relays to them. Does anyone have any input on this? It seems to me a truck, tahoe, or suburban 4l60 of most year would work. Any help would be greatly appreciated......thanks dave!!
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01-22-2012, 11:55 AM | #2 |
97' Tahoe 2dr/2wd
Join Date: Jul 2002
Location: Huffman,TX
Posts: 1,168
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Re: 97 2wd tahoe tranny
i have a 97.. never heard of it being a 1 yr only.. when my trans went out, i had it rebuilt, did not go the salvage yard route...
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01-22-2012, 12:20 PM | #3 |
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Re: 97 2wd tahoe tranny
i think ur right not about the 1year tranny tho. in 97 gm changed the bell housing design on 4l60e. instead of a halfmoon bell housing they went with a complete detachable bellhousing. i think when they did this it resulted in the trans being about 3in longer than before. because i sold a 2wd 4l60e to a guy with a 99new body style truck. it turned out the trans i sold him was to short for his truck. but he did have the new vortec 5.3lin the truck so im not sure if that would have made a difrence. thats just my 2cents.
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01-22-2012, 12:32 PM | #4 |
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Re: 97 2wd tahoe tranny
I believe the the earilier 93-95 model will bolt up, but will not work with your electronics. If yours is not a two piece bell housing your selection my be limited to just 96 and the 97s like yours. Mine is a 98 with a two piece bell housing. I'm not 100%, but I bet member clinebarger can clarify, he is the man when it comes to transmissions.
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1998 GMC Sierra SLE 1/2 ton 2WD 305 Vortec -Gibson Stainless Cat Back Swept Side -SS Wheels 2005 Honda CRF250R 2006 Honda CRF150F |
01-22-2012, 09:03 PM | #5 |
97' Tahoe 2dr/2wd
Join Date: Jul 2002
Location: Huffman,TX
Posts: 1,168
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Re: 97 2wd tahoe tranny
my 97 was not a 2 piece bell housing...
and this was the 1st rebuild |
01-23-2012, 12:11 AM | #6 |
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Re: 97 2wd tahoe tranny
Hmm..my 99 tahoe isnt a 2-piece either..
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01-25-2012, 07:40 PM | #7 |
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Location: Fort Worth, TX
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Re: 97 2wd tahoe tranny
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01-25-2012, 05:25 PM | #8 | |
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Re: 97 2wd tahoe tranny
Quote:
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01-25-2012, 06:34 PM | #9 |
97' Tahoe 2dr/2wd
Join Date: Jul 2002
Location: Huffman,TX
Posts: 1,168
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Re: 97 2wd tahoe tranny
i looked on one of the salvage parts listings i use for a 97 tahoe trans.... it only showed 1997 results... it normally shows the interchange between other years....
maybe it is a 97 only trans.... just never heard of this before... |
01-25-2012, 07:14 PM | #10 |
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Join Date: May 2009
Location: Fort Worth, TX
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Re: 97 2wd tahoe tranny
93 & 94 4L60Es are "NON-PWM" and will not work.
LS "300mm" 4L60Es will not work because of the converter spacing. Your interchange will depend on what 4L60E you have....A 1 peice or a 2 peice case. The reason for it listing the 97 as a 1 year only is because of the converter clutch friction material...Woven Carbon Fiber Clutch material that was only used on a 1 peice case 4L60E in 97. The original 700R4 and 93-94 4l60E used an on/off type lockup. Meaning it was off or fully locked on. In 95 they went to a PWM (pulse width modulated) lockup, which controls the aggressiveness of the apply and release of the torque converter clutch and allows a bit of slippage for a smoother feel. In 97 GM went to a different strategy called electronically controlled capacity clutch. In order for this strategy to work a new converter clutch lining had to be developed to withstand the slippage and heat generated. What GM came up with is a woven carbon fiber material that is very porous that allows fluid to flow though it for better heat transfer. Using a older converter with a graphite composition lining will not work long. |
01-26-2012, 05:03 PM | #11 |
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Location: novinger, mo
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Re: 97 2wd tahoe tranny
clinebarger, my trans has the one piece case, so if i used my converter with an older 4l60e (pre-97) would this combination work?
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01-26-2012, 07:19 PM | #12 |
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Location: Fort Worth, TX
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Re: 97 2wd tahoe tranny
Yes, You can use yours or a rebuilt 97 & up converter, It still limits you to 95-97 transmissions. If the trans you have is burnt-up/broke the converter needs to be rebuilt/replaced. & be sure to flush the cooler lines.
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01-26-2012, 10:19 PM | #13 |
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Location: novinger, mo
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Re: 97 2wd tahoe tranny
just to clarify, only 95-97 tranny will work if i use 97 converter. or will 93-97 (4l60e with 1pc case) tranny work with a 97 converter? Sorry to keep asking but I have good deal on a older tranny, but do not want to install if it will not work. Thanks...Dave!
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01-25-2012, 11:41 PM | #14 | |
97' Tahoe 2dr/2wd
Join Date: Jul 2002
Location: Huffman,TX
Posts: 1,168
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Re: 97 2wd tahoe tranny
some other things i found...
http://www.novak-adapt.com/knowledge/4l60e.htm Quote:
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02-19-2012, 11:08 AM | #15 |
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Location: novinger, mo
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Re: 97 2wd tahoe tranny
hey clinbarger (or others) found a doner truck '96 1/2ton 4l60e. if i am correct,this tranny will work? you say 97 converter... is it a stand alone piece (at the parts stores) or do i need to ask for something specific? also, how long do you estimate the '96 converter would run if i used the one thats in the doner truck? thanks!!!
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02-19-2012, 03:37 PM | #16 | |
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Re: 97 2wd tahoe tranny
Quote:
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02-19-2012, 06:40 PM | #17 | |
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Location: Fort Worth, TX
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Re: 97 2wd tahoe tranny
Quote:
If you run the wrong converter.....The lock-up clutch plate will burn up. You can have your 97 converter rebuilt. Or buy one. The actual name is Torque Converter. |
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02-19-2012, 09:02 PM | #18 | |
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Re: 97 2wd tahoe tranny
Quote:
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02-19-2012, 10:17 PM | #19 | |
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Re: 97 2wd tahoe tranny
Quote:
Yes you can run those year transmissions. |
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02-19-2012, 10:42 PM | #20 |
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Re: 97 2wd tahoe tranny
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