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Old 09-13-2012, 09:42 AM   #26
LEEVON
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Re: Highway Speeds

71 swb
355 heads/cam
700R4 w/ 2200rpm converter
3.73
255/60/15 (28"-ish)
22-2300 RPM at 70mph locked. 2500-2600 unlocked.

This is pretty much the ideal gearing in my opinion, although I prefer to cruise at 65mph. Every truck has an ideal cruising speed, mine is governed by road and wind noise, vibrations, etc.
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Old 09-13-2012, 10:07 AM   #27
RustyBucket
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Re: Highway Speeds

Quote:
Originally Posted by cubber View Post
69 swb stepper
250 I6
TH350
3.42 or 3.08 gear (maybe somebody can tell from this info)
70ish (speedo a little off from gear change) @ 25-2700 rpm
255/70r15 tires
15+ mpg
Cubber, what gear did you change from/to to throw your speedo reading off?
I've got an app. on my phone, SPEED BOX, it's free and it's like havin' a speedometer in your pocket. I wanted to know how fast my golf cart would go.
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Current toy trucks:
'71 GMC 1500 SUPER CUSTOM short/step, orig. dk. blue, 350/700r, ps,pb, A/C
'72 Blazer 2wd, ochre & white, 454, tremecTKO 500 5spd. ps, pb, A/C, tilt

Last 10yrs of hobby vehicles, had a FEW more in the 50yrs. before these:
'66 Plymouth Belvedere City of Miami cop car clone.
'70 Nova 406"sb, 13.5-1, solid roller, Brodix, p.glide/t.brake, back halved, 9" Ford, spool 4.88, cage,ladder bar/coilover, 10.5 tire....... SOLD!!
'67 C10 short/step side mount spare -- SOLD!!
'72 Jimmy 2wd, 350/350, ps, pb, fun driver, lots of bondo & a shiny red paint job..... SOLD!!
'69 Nova 350, 4spd, A/C, ps, p.b, ...SOLD!!
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Old 09-18-2012, 10:08 PM   #28
rkn463
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Re: Highway Speeds

You'll love this...

1968 C50
327 2 barrel carb
gears - roughly 7.20:1
tires 7.50-20
4 speed granny gear trans

3700 RPM at 60 mph

I had it up to 60 one time, never again w/o some serious modifications
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