what transmission to use
08-21-2014, 02:28 AM
#1
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what transmission to use I'm doing a swap on my V6 Firebird And putting on a 02 lq4. What transmission can use???
by that I mean if I can use a transmission out from a car or a truck that is compatible with the LQ4 the 99 Trans am PCM because I can't find a stock Ls1 transmission. can guys help I'm now really a transmission kind of guy.
by that I mean if I can use a transmission out from a car or a truck that is compatible with the LQ4 the 99 Trans am PCM because I can't find a stock Ls1 transmission. can guys help I'm now really a transmission kind of guy.
08-21-2014, 08:20 AM
#3
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For direct bolt-in you need a '98 through '08 4L60E/4L65E/4L70E from a 2WD vehicle (except Corvette) with a V8 LS engine. For directly bolt-in it must have a 300mm input shaft which corresponds to a bell housing with a bolt hole in the 12 O'clock position. Newer years are better as GM made strength improvements.
Last edited by mrvedit; 08-25-2014 at 10:24 PM. Reason: Added "except Corvette"
08-23-2014, 07:55 AM
#4
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Thanks. So a transmission from a 98 through 08. I'm going to buy the transmission in a junk yard is there a way to find out if the transmission is good or bad
08-23-2014, 03:01 PM
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Not without fully taking it apart yourself and seeing, no. Pull off the pan and look at the fluid and that will give you a good idea, though that's not a definitive way to know if it's good.
08-23-2014, 07:57 PM
#6
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^^^ Exactly.
A thick goo or dark color indicates the frictions are well worn and likely in need of replacement (i.e rebuild). Chunks of metal indicate a serious problem like a broken forward sprag; don't even consider that.
A thick goo or dark color indicates the frictions are well worn and likely in need of replacement (i.e rebuild). Chunks of metal indicate a serious problem like a broken forward sprag; don't even consider that.
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08-25-2014, 12:16 PM
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Okay I went out and bought a transmission yesterday it Took me all night to put the motor and transmission back under the car. Can someone help I don't now what I did wrong I put the car in gear and nothing happens it doesn't move at all !!!!!!!
08-25-2014, 08:10 PM
#10
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Very likely correct.
What was the gap between the converter and the flexplate?
Did you measure that the converter was fully seated?
The distance between the converter pads and a straight edge over the bell housing should be be 1-1/8" +/- 1/8".
What was the gap between the converter and the flexplate?
Did you measure that the converter was fully seated?
The distance between the converter pads and a straight edge over the bell housing should be be 1-1/8" +/- 1/8".
08-25-2014, 08:47 PM
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08-26-2014, 11:05 AM
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Lol. I did measure it but I heard it go into place 2 click right.
Do you guys think I broke the oil pump from the transmission if it did go in the right way?
Do you guys think I broke the oil pump from the transmission if it did go in the right way?
08-26-2014, 05:32 PM
#14
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First, counting "clicks" is not always accurate.
Second, the "click counters" would tell it to listen for 3 clicks, not just 2.
The only way to be sure is to measure the distance from the converter pads to a straightedge over the bell housing, The 4L60E and IIRC all GM transmissions will have a correct distance of 1-1/8".
If the converter was not fully seated and you started the engine you probably ruined the pump on the trans.
You did put the converter bolts in, right?
Were you able to spin the converter to align the pads with the flexplate?
Second, the "click counters" would tell it to listen for 3 clicks, not just 2.
The only way to be sure is to measure the distance from the converter pads to a straightedge over the bell housing, The 4L60E and IIRC all GM transmissions will have a correct distance of 1-1/8".
If the converter was not fully seated and you started the engine you probably ruined the pump on the trans.
You did put the converter bolts in, right?
Were you able to spin the converter to align the pads with the flexplate?