rotor...3.45 vs other ratios

canyoncritter · Dec 22, 2007

had a race in spin the hub on the brake rotor, so time for a new rotor........

took a peek on the autozone page. list one rotor for 3.45 gear ratio and then anouhter rotor for all other ratios........

I rember from the last board there was some diffrence...what is it,,,what was diffrent on the trucks that came with 3.45's vs other ratios....

truck is a 1991 reg cab,long bed 4x4,real dana 35, 4.0 ,5spd, manul t case

CopyKat · Dec 22, 2007

3.45 will guarantee that it's a D28 not a D35. One of the dumb ways auto parts stores tell the difference between the 2. If the guys not going to know the difference between a D28 and D35 hows he to know what ratio it is. Reason for the tags or door sticker.

canyoncritter · Dec 23, 2007

can't say 3.45 for a fact make it a d28 cause my d-35 came from the factory with 3.45's...door tag,and the sticker on the pass.side beam said axle"d35....ratio" 3.45 and the build date that was on the beam sticker was with in a mounth of the build date on the truck...
I say "said" cause the beams got sand blasted a few weeks back.And the sticker did not make it.

maybe it HAD been a hybrid 35/28 in its life,truck had 15plus years other owners...cause it has a d35 pig and r&p set in it.and I know for a fact housings,spindle snouts etc. But even if it had been a hybrid it would still have had d35 knuckles and snouts?.So I dont see how that could affect anything in the rotor hub.

CopyKat · Dec 23, 2007

OK you keep believing that. 3.55 and I would never argue the fact. But 3.45 :no2:

My door tag says I have 3.45's in my B2 with a D28 and 7.5. But I know it's got a D35 and 8.8 with 3.73 cuz I swapped them in there. Door tags mean Jack unless you know that the axles have never been tamperd with. Same goes with the diff tags.

Prove that you got 3.45's in a D35!!! :c-n:

rickcdewitt · Dec 23, 2007

i think i'de be worried some genuis left 3.45's in back and put the d35 in the front

canyoncritter · Dec 31, 2007

at sometime by one of the prevoius owners of the truck has been regeared.has 4.56's in it now. and both ends match.

copy, I dont know what to tell you, other than like what I said/asked before, maybe it had been a hybrid at one time/from the factory?...I erased my proof I guess you could say with the sand blaster with the sticker.

by looking on I think it was napa,one is a 11.25 inch dia and one is a 10.8inch dia. So I would say over all you are right.

MAKG · Dec 31, 2007

As has been hinted at, the rotors do not depend (directly) on gear ratio. However, Dana 35 and Dana 28 rotors are different. It's not just the diameter. If you have a Dana 35, use the "all other ratios" choice. If you have a Dana 28, lie about the gear ratio and say it's 3.45.

But I'd suggest looking for a parts guy that knows the difference. They are good as gold if you can find them.

metalmacguyver · Dec 31, 2007

MAKG said:
But I'd suggest looking for a parts guy that knows the difference. They are good as gold if you can find them.

sad but true. then again, we know lots of stuff about our rangers, and less about most other cars. the parts guys nothing about anything or a little bit about everything (the good ones)

rotor...3.45 vs other ratios

canyoncritter

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CopyKat

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canyoncritter

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rickcdewitt

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MAKG

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metalmacguyver

Yeah, I built that.

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