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Author Topic:   rearend width
36k
Member
posted December 16, 2000 10:34 PM
I think if you use a metric clip with stock metric spindles, and redrilled rotors a 58 inch will work, but if you use adaptors on the front rotors you will need a 60 inch. I don't know if there is any advantage between the two I just think you need to use the rear end that fits your car. There are probably some more intelligent opinions on this matter.


workin' it
Member
posted December 17, 2000 05:59 AM
USING THE NARROW REAR END WILL TIGHTEN UP THE CAR BECAUSE OF THE TRACK WIDTH BEING NARROWER IN THE REAR,PLUS SHOULD GIVE YOU MORE SIDEBITE WITH RIGHT REAR MOVED IN AN INCH.


36k
Member
posted December 17, 2000 05:26 PM
Personally, I'd redrill the rotors to 5 on 5. There just aren't that many guys running 4 3/4 wheels on modifieds, around here anyway. This presents a problem if you ever want to borrow or loan a wheel, as well as limiting your options when buying wheels, new or used. I don't recall ever seeing a 4 3/4" wheel in any parts trailer where I've raced...and you WILL need to buy more wheels than you care to over the course of a season.
Also, your rear hubs being 4 3/4" are going to bring about the same type of problems if your ever wreck a driveplate (yes, it happens). Most vendors won't stock a 4 3/4, so you'll be left staring at a pile of useless parts in your garage til your new one arrives in the mail. Upside... I bet those parts would be spotless when it went back together...
Given that a front brake rotor doesn't really wear or break much, the expense to have a pair redrilled will save a lot of pain in the a$$ in the long run. Better yet, if your rules allow, Coleman makes aluminum adaptors that are an inch thick, bolt on, and go from 4 3/4 to 5 on 5 for somewhere around $65 a pair. Wider front track, with a part you can use over if you ever do wear or break a rotor.

My $.02,
Matt


wfoondirt
Member
posted December 18, 2000 10:33 AM
gnarly, just curious to where you race at, just curious cause around here the majority of people are running 4 3/4 and thats just about all we carry. 5-6 years ago i would agree that most everyone was running 5x5 but now it seems everyone is switching to 4 3/4. I know coleman and most other rear end manufacturers carry both patterns and i've haven't run into a problem getting either one. As far as the rearend width with the variety of offset wheel available now its not extremely important which rear you use the only real advantage of the 58" is less unsprung weight, but its a good idea to consult the chassis manufacturer on which one the recommend.

[This message has been edited by wfoondirt (edited December 18, 2000).]

GnarlyCar
Member
posted December 18, 2000 10:04 PM
WFO,
I stand corrected. I've been racing in Central Minnesota and western Wisconsin for 9 seasons now, the last 4 in modifieds. Even back in the street stock days, guys were redrilling for 5 on 5, I think because it was easier to redrill a rotor than it was to redrill the ford 9" axles to 4 3/4.
Must be a regional thing... I honestly don't know anyone who's running 4 3/4" wheels on thier mods up here. Probably just the way things have evolved in the last 10-15 years or so, with each new season's rule changes making the best way to be 5 on 5. Probably with different sanctions, different rules, things evolve differently. Kinda interesting to think about.

Matt

Reign
Member
posted December 18, 2000 11:26 PM
I rece out in california and nost if not all at my track run 5 on 5


saintmike
Member
posted December 24, 2000 09:44 AM
Here in Southeastern Wisconsin / Northern Illinois, 95% of what is run (and stocked trackside) is 5 on 5.


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