f series irs question

[sam-131]

i am wondering if all f irs diffs have the same mounting points? or which do have the same mounting points ?

thanks Sam

[whatthe?]

MX73 cressida, RA65 (where fited with f series) and MA61 are definitely all the same housing

[sam-131]

i'd take i that the rt142 is the same as the ra65

what about an mz10 or a mx83?

[wilbo666]

MZ10, GZ10 (where fitted with F series and not T), MZ11, MZ12, RA65, MA61, MA63, MX73, RT142 all the same to my knowledge...

MS123 IS different to the above mentioned! It has a protrusion out the rear and a rubber mount!...

And MX83 is G series, not F

Cheers
Wilbo

[CrUZida]

I think its just the rear plate on the MS123 thats different, where as the diff housing itself is the same.

[wilbo666]

I think its just the rear plate on the MS123 thats different, where as the diff housing itself is the same.

MS123...Looks a fair bit different to me?

Cheers
Wilbo

[CrUZida]

Hmm, indeed it does.
Sooo much heat disapation capacity

[joecoolmk2]

that diff would be good for hour long burnouts!

seriously, a diff doesn't even get that hot, that's a large amount of weight that could be chopped off. you'd want some ribs for rigidity, but not THAT much.

so ALL F irs housings bolt in the same eh?(except that ms123 one)
so would a fair few of the crossmember be the same too? or are they all different ie different swing arms and axle lengths?

[whatthe?]

Subframes vary from car to car. AFAIK RA65 and MA61 are the same, but MX73 is different. Cruz can probably enlighten us on the MZ variants here

[CrUZida]

MZ10 = MA61 in all suspensions.

MX73 has same diff, but different crossmember (similar, but not identical)

[sam-131]

hmmmm

i pretty sure the rt142's crossmember/set up is the same as the ra65 can any one confirm ?

[wilbo666]

hmmmm

i pretty sure the rt142's crossmember/set up is the same as the ra65 can any one confirm ?

Yep confirmed, subframe and arms are the same as MA61 / RA65.

Cheers
Wilbo

[sam-131]

oh oh major major major thanks to all

one last question how much can a f series take befor it goes kabooom ? 250hp? 300hung?

[Norbie]

An F series with stock LSD centre can't cop a lot of abuse from what I've seen (just ask Wilbo), however with a TrueTrac centre they seem to be damn near indestructible. I'm putting over 300rwhp through mine and after 3 years it's still good. In that time I've broken a clutch, a tailshaft and 3 W58's, but the diff has never given me the smallest amount of trouble.

[WDE_BDY]

Yep confirmed, subframe and arms are the same as MA61 / RA65.

Cheers
Wilbo

And the same as TA63 and RA63 with F code IRS.

Callum