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Reply With QuoteThe performance will be night and day. I am not sure about he speedometer, but there are hundreds of guys on here who I am sure will answer that soon.
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This is a discussion on Gears within the Performance forums, part of the General Discussion category; If I changed the gears in my 89 c1500 from 2.73 to 3.42 how would the speedometer act?My truck is ...
If I changed the gears in my 89 c1500 from 2.73 to 3.42 how would the speedometer act?My truck is 305/400thm and I think changing the ratio would be a big help in getting more performance.
1989 c1500 longbed,305-bone stock
The performance will be night and day. I am not sure about he speedometer, but there are hundreds of guys on here who I am sure will answer that soon.
Used to own a FSC, now I just have my extremely old Buick.
Have some perspective please. Thank you.
Your speedometer will read fast when you put lower gears in. You'll just need to get it recalibrated. Putting 2.73's in anything definitely wasn't one of GM's better ideas.
01 SFA 1500: project truck, in pieces again
87 Jeep Cherokee: trail rig, slowly getting built
03 Buick LeSabre: fully loaded daily driver
84 M1009: constantly broken money pit, finally gone
Yeah im sure its pretty far off. I would definitely have your speedo recalibrated. Depending on your driving location, more city or highway, you might see better MPG.
97 Gmc Sierra 1500
Current mods: Flowmaster 40's, K&N FIPK, S10 converter, wait4me tune, LT1 fans, 2" drop shackles, Alpine CDA-9856 head unit.
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