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Re: Rear end gear swap help!!
[quote=Awann99;8763379]I’m running a stock 3:07 open rear in my truck Since I am swapping to a 700r4 those gears will not work well with that transmission for a number of reasons. Thanks guys.[/
I'd try it with the 700r4 before you change the rear gear. My'71 GMC stepside has a mild 350/700r4/3.07 rear combo and it drives fine. A 700r4 has a low 3.06 first gear and my truck isn't lazy off the line at all. It'll burn the right rear 275/60/15 T/A if you slap it too hard from a standing start. Mine goes into O.D. at about 50mph. Sometimes I bump the shift lever down one so it doesn't go into O.D. ... third gear on the 700r4 is a 1 to 1 ratio same as your current 350 turbo in top gear. Depends on what you do with your truck. I've had mine about 7yrs and it's a fun driver. EZ cruise on the Interstate and keeps up w/traffic good in town.
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Dad always said, "Son, WISH IN ONE HAND, and ......."
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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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