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pgerbz

Need help finding gear ratios for 88 d/r and 93 pushbutton 4wd

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I am rebuilding an 88 5sp d/r range with parts from a 93 5spd push button. The ring and pinion in particular. The person who is actually doing the work is worried that the gear ratios are different. I learned from a previous post that the low range gears are on the input shaft. So, would it be as simple as swaping the old pinion with the new without messing with the gears?

 

The only info I can find on gear ratios is for "85-94 4wd". No where says anything about d/r or pushbutton.

I might be being too careful, but I'd like to make sure we're not messing anything up.

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I have both of those trans and they have the same ratio if that helps: 3.9  mine is a 1989 and 1992.  

 

The Turbo Ea82 had 4.11 I believe - check me.

 

The real difference is going from Always FWD to button 4WD high vs.  Always 4WD high to LEVER always 4WD low.

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A lot of the dual range transmissions were in the  RX models with 3.7:1 final drives. 

 

Count the teeth. 

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