The A340H is the auto tranny that is behind the 3.0L, and the A340F is behind the 3.4L. Marlin makes a adaptor for the A340F, and people have swaped it in there older trucks. The F and H have same bolt patters for mounting and bellhousing to both v6s. My question is there are both connedt to the ECU right? Do they both work with each others ECU? H with 3.4ecu, and f with 3.0ecu? Main reason for asking is I am trying to do 3.4L swap as cheap as possible, I could always get the new tranny later but for now I want to keep mine. Any help apriciated
Max, the 3.0 uses one dime size magnet, and the 3.4 trans uses a 4 prong reluctor ring. I had to mill the adapter housing on the 3.4 trans to accept the 3.0 pickup. I also machined and installed the 3.0 magnet on the 3.4 output shaft.
I would be happy to talk to you 559 252-7295 Marlin
« Last Edit: Jan 20, 2004, 01:16:01 AM by Marlin »
1980 Toyota - 1997 3RZ-FE 2.7l Engine, Turbo R151F 4.31:1, Triple Turbo Marlin Crawler Billet (2.28x4.70x4.70) = 1,148:1 Crawl Ratio, Marlin Crawler Twin Stick and Short Throw Shift Kits, 30mm H/D Output Shaft, High Angle Drive Lines, 5.29:1, ARBs, High Pinion Front, 25mm HD Billet High Steer Kit, 6 Pin Locking Hub Bodies, 86+ Wide Rear End, V6 3rd member, Chromolly Axles all around, 37" IROKs with Beadlocks, York onboard air - Rollbar air tank, Premier Power Welder, Marlin Crawler 4" USA-made Leaf Springs, Bilstein Shocks, et cetera....