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Old 10-12-2017, 11:34 AM
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Default 4cyl transmission question

So it looks like my clutch decided to let go this morning on the way to work in my 84 pickup (22re w/ G52 trans).
Little back story....The trans has been making a bearing roar in 5th gear for about a year now so I just don't shift into it. The noise is subtle in 1st and 3rd and nonexistent in 2nd and 4th. I had the trans rebuilt about 80k miles ago and I'm pretty much over the G52. While I would love to swap in a r151f (turbo) trans, I don't think I will be able to find one at a reasonable price. So I'm thinking a w-56 swap.

The G-52 is forward shift so I would need a W-56 C,D, or E and I believe everything will work out great.

OR I can buy a top shift W-56 A or B with the transfer case but I don't know if shifter positions and lengths would match up with my truck body. I really don't feel like cutting my floor up.

Anyone have any knowledge of this swap?
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Old 10-12-2017, 11:47 AM
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You can put a W56 C/D/E in place of a G52. But beyond the hiccup of the holes in the floor (which you can solve by getting the W56 shifter boots I think) the offset in the forward t-case shifter is 1/2" different. You can use the RF1A from your G52 but you'll need the shorter (4" vs 4.5" with the G52) shifter rods for a W56, too.

Swapping to a turbo R151F is OK, too, but finding one is tough. I never saw the reason for doing that, it's cheaper to do lower t-case gears or just do a dual case, either way you get a worthwhile change instead of a little bit of 1st gear reduction.

BTW, Marlin makes (or used to anyway) a G52HD that solves the weakness in the G52. Dean has one of those. Marlin machines it for a larger input bearing.
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Old 10-12-2017, 11:53 AM
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Ok, if I'm understanding you a W56 C,D, or E will fit with my RF1A if I get shorter shift rods?

If I get a W-56 A or B, as long as I get the shift boots for it, then it should work fine?
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Last edited by ToyodaTocco; 10-12-2017 at 11:57 AM. Reason: clarification
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Old 10-12-2017, 11:56 AM
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Quote:
Originally Posted by ToyodaTocco View Post
Ok, if I'm understanding you a W56 C,D, or E will fit no problems with my RF1A?

Or will I need the 4.5" shifter rods for them?
The G52 and W56 are the same bell housing pattern, length, output, etc.

The RF1A will bolt on but the t-case forward shifter rods are different between the two. Your current G52 rods should be 4.5" and the W56 need 4.0" long.

It's best if you can find a W56C/D/E with a case attached. Plus that way you can use your old case for a doubler. If pressed to reuse the case, though, I'd guess Jim will have a bin of about 100 shifter rods.
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Old 10-12-2017, 12:16 PM
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top shift will not match up. btdt. but it was easy to cut an extra hole in the floor and covered the original hole when i put a w56 in clampy years ago and it didn't look bad
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Old 10-12-2017, 06:53 PM
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Called Jim's and he has some W-56 C/D/E trans and transfer cases but I'm not sure if I can pull the trigger on it yet.
Marlin's site lists that one clutch will work with the G52, W56 A/B and a different clutch will work with the C/D/E.
Any idea what the difference in the two clutches would be?
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