4L80 or TH400?
12-12-2007, 12:50 PM
#1
4L80 or TH400?
Something gave way in the tranny today, either input shaft, pump or converter. Depending on what I find when I pull it out I will be deciding on something stronger than the Level5 4L65 I have now. I am contimplating either a built 4L80 which would be good if I keep the truck a daily driver as it is now or a built TH400. The 400 would make the truck very fun to drive but shifting, no lockup and no overdrive would force me to make the truck a weekend toy and get another dd (thinking 00-04 Tahoe/Yukon). Price is also going to be a deciding factor which I have not looked into yet. Any opinions or suggestions?
Last edited by BigKID; 12-12-2007 at 03:32 PM.
12-12-2007, 02:48 PM
#4
4L80E with a shift kit can handle lots of power, and you should be able to do a tranny plus conversion for about the same price as a top of the line 4L60E. My trans has clutches and a shift kit I think, and that's about it. Supposed to be good for 900rwhp.
12-12-2007, 02:58 PM
#5
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I'd say go with the 4L80E rather than having to buy something else for a DD. Im pretty sure the gear ratios between the two are exactly the same, except of course no OD with the 400.
12-12-2007, 03:39 PM
#6
The wife and I have been talking about getting an SUV anyway and she really likes her car so a Tahoe/Yukon would work out great for me.
I had briefly though about a T-56 swap as well but figured I would be going thru lots of clutches with the weight of the truck especially when I pully down for more boost.
I had briefly though about a T-56 swap as well but figured I would be going thru lots of clutches with the weight of the truck especially when I pully down for more boost.
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12-12-2007, 06:54 PM
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The wife and I have been talking about getting an SUV anyway and she really likes her car so a Tahoe/Yukon would work out great for me.
I had briefly though about a T-56 swap as well but figured I would be going thru lots of clutches with the weight of the truck especially when I pully down for more boost.
I had briefly though about a T-56 swap as well but figured I would be going thru lots of clutches with the weight of the truck especially when I pully down for more boost.
Well if you want to give it some more thought, i may be going back to an automatic, so mine would be up for sale. Everything you need with fresh rebuild, built for 700+ hp.
12-12-2007, 08:52 PM
#10
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I drive my truck back and forth to work as much as I can. Cruises between 2500, 2800rpm....65, 70. Its like having the best of both worlds, shifting without a clutch.