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RustyBucket · 06-25-2020, 02:27 PM

[/QUOTE]

What HP does your engine make. I’m using a good wrench 350 that makes 195-260 HP. I will be using the truck as a comuter so mostly 65 mpg driving. What kind of mpg do you get? I was more worried about the pulling power and around town driving with the 3:07 rear.[/QUOTE]

I'd say somewhere between 195-260hp ... I'm assuming it's a prev. owner rebuild, I didn't do it. Original engine, cam change, H.E.I. distributor, 600 Holley on a Performer manifold, iron ex. manifolds... no hot rod motor. Seems like it uses a lot of gas, haven't checked mileage. Probably 10-12mpg. Truck has ps, pb, after mkt. A/C. In reality I'm not sure if the O.D. transmission is saving anything. First gear is a little stronger 'cause of the low trans. ratio.

06-25-2020, 02:27 PM	#9
RustyBucket Registered User Join Date: Jul 2009 Location: Space Coast, Fl. Posts: 1,055	Re: Rear end gear swap help!! [/QUOTE] What HP does your engine make. I’m using a good wrench 350 that makes 195-260 HP. I will be using the truck as a comuter so mostly 65 mpg driving. What kind of mpg do you get? I was more worried about the pulling power and around town driving with the 3:07 rear.[/QUOTE] I'd say somewhere between 195-260hp ... I'm assuming it's a prev. owner rebuild, I didn't do it. Original engine, cam change, H.E.I. distributor, 600 Holley on a Performer manifold, iron ex. manifolds... no hot rod motor. Seems like it uses a lot of gas, haven't checked mileage. Probably 10-12mpg. Truck has ps, pb, after mkt. A/C. In reality I'm not sure if the O.D. transmission is saving anything. First gear is a little stronger 'cause of the low trans. ratio. Attached Images __________________ Dad always said, "Son, WISH IN ONE HAND, and ......." -------------------------------------- -------------------------------------- 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!!