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#1
08-31-2025, 09:22 PM
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You are BOTH Wrong. The Cat and GP are the same car just different trim. The Bonneville and StarChief have the better transmission hence the bigger trans tunnel.
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| The Following 2 Users Say Thank You to Goatracer1 For This Useful Post: | ||
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#2
08-31-2025, 11:36 PM
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Quote:
On mine (63 Cat) neither TH350 or TH400 would fit without some small modification to the tunnel. Looks like the TH400 will go, it just needs the tunnel massaged a bit further back than the TH350 needed. Its only a small amount, so will get onto it and post results (with pics)
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Working on going faster (and now staying dry at the same time !!) |
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#3
09-02-2025, 02:21 PM
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Goat Racer is correct about tunnel sizes. I put a BOP TH 350 in my 64 GP. I was fortunate to find one with a lock up torque converter. There is a controller available to automatically lock and unlock the converter, but they were not available during COVID and I just utilize a lighted under dash switch to control it. Locking the converter on the highway is a nice option.
I did use a modified transmission mount Last edited by Yellow Banana; 09-02-2025 at 02:24 PM. Reason: Add mount comment |
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