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#58694 04/01/2006 10:02 PM | Joined: Mar 2005 Posts: 63 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2005 Posts: 63 | I am thinking on putting some 3.55:1 rear gears in my '52. I will be using this truck as a daily driver. I am curious on what experiences people have had with the 3.55's. I have a sm420 transmission. Thanks for all replys, Wayne | | |
#58695 04/01/2006 10:36 PM | Joined: Mar 2005 Posts: 171 Shop Shark | | Shop Shark Joined: Mar 2005 Posts: 171 | zb3,
for around town city driving the 3.55:1 conversion is great. you can really move with traffic. that said it still isn't enough to cruise 70-80 mph on the interstate. you'll still turn 3000 rpm @ 70 which is still too much for any length of time. are beloved old sixes just don't have enough nickel content in the block for that.
really it just depends on the type of driving your going to do.
robert. | | |
#58696 04/01/2006 11:25 PM | Joined: Aug 2000 Posts: 1,438 'Bolter | | 'Bolter Joined: Aug 2000 Posts: 1,438 | I agree with bluechev. I have 3:55s with a T5. I'm really happy with that combo.
Dennis
40 Chevy 1/2 ton
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#58697 04/01/2006 11:39 PM | Joined: May 2004 Posts: 920 'Bolter | | 'Bolter Joined: May 2004 Posts: 920 | I stuck a gear vendors O.D. on the back of my sm420 and couldn't be more pleased. My rear is 3:90 w posi. I drove to Portland and back recently and averaged 75mph on the way back. 4th over is the equivilant of having 3:08 rear. It's an expensive way to go, but it gives you the best of both worlds. Also, 3rd over is AWESOME for hills and in city driving over 30mph. This way you also get to keep your granny and use the truck the way it was intended. | | |
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