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Old 10-14-2011, 03:00 AM   #1
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So with 224k on it, my 5 speed is starting to grind. It's weird though. It;s always already ingear when it grinds as im releasing or engaging the clutch. Like the power being applied and removed from the gears is causing a synchro to grind somehow. Anyways, locally I can source a SOHC 240 transmission easy. I was just wondering if it'll fit. I can use the bellhousing from my stock transmission and just swap over the gear box.

I did some looking into it, and the 240 and the hardbody share exactly the same gear sets/ratio's aside from 5th. Both the mainshaft and countershaft gears are one tooth shorter on the hardbody if my memory's correct. It might be one on the main and 2 on the counter shaft...I'll check on monday when I have access to fsm's. However, the cases look slightly different in the exploded views of the whole assembly. The bellhousings are clearly different, but the gear boxes seem pretty damn close to the same.

Anyone thats looked into it as well please add to this!
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Old 10-14-2011, 04:09 AM   #2
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The shifter is way back on the 240. The guts are probably interchangeable enough.
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Old 10-14-2011, 01:20 PM   #3
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So what if I picked up a 240 transmission, cut the floor to fit the shifter...then I could run a 240 short shifter as well as get the longer 5th for better highway.

Theres a 240 tranny for $50 about half an hour from where I live.
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Old 10-14-2011, 01:29 PM   #4
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I installed a 240 trans in my old HB I had a few years ago, it bolts up and really not much you have to trim. Heres a pic after getting the 240 trans installed...............I miss my old HB
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Old 10-14-2011, 01:45 PM   #5
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id like to do this! i think itd be nice to have my shifter a little closer and shorter =]
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Old 10-15-2011, 12:41 AM   #6
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Quote:
Originally Posted by mizzat508 View Post
So with 224k on it, my 5 speed is starting to grind. It's weird though. It;s always already ingear when it grinds as im releasing or engaging the clutch.
think maybe the throw out bearing might be bad. a bad trans whines while moving or a crunch when shifting into gear.
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Old 10-24-2012, 02:00 AM   #7
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Quote:
Originally Posted by Monster2TG View Post
I installed a 240 trans in my old HB I had a few years ago, it bolts up and really not much you have to trim. Heres a pic after getting the 240 trans installed...............I miss my old HB
I love this pic. just by the shear fact that the shift knob will be close. I see my truck being converted to a manual shortly.
theres a few other steps to this process correct?
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Old 10-24-2012, 02:53 AM   #8
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As far as? Really not difficult, remove HB trans, install 240 trans in reverse order, Trim or hammer shifter hole so you can shift into 2nd gear with no issues and either get a one piece driveshaft made or get the front half of the driveshaft shortened.
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Old 10-26-2012, 09:02 PM   #9
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It wasn't to bad, little harder to get the 240 trans in because it's longer but other than that no big deal. I put the truck sifter in the car trans because i didn't have a car shifter, that took some more work.
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Old 10-26-2012, 10:42 PM   #10
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240 ecu?
Idk what I'm asking exactly..I can put the transmission in, but what else has to be done for to run correctly..I know clutch but 240 clutch or truck..
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