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Q78's on a Sierra
Posted: Fri Sep 05, 2003 3:08 pm
by greg
Hi All,
Basically I'm a sucker for upgrades and am currently considering changing up to a Q78 swamper. Just wondering if anyone else is running this size? (35.x" i think)
I've done a little bit of research about them - i expect they should flex as nicely as the 36x12.5 do (because they have one less ply in the sidewall according to the interco site).
I also know that i should be able to run them on the 6.5" beadlocks that i've got (the interco site says they require a 7", but it also says that my current tyres require a 7" too).
So basically my queries are:
1. Can i keep my headlight / firewall / bonnet and squeeze a 35" tyre under there without going spring over?
2. How big / tall is too big / tall for a swb sierra before it becomes overly massive and wants to spend all it's time lying down - or before it starts looking overly massive (like Jerry's Jeep from Top Truck last year)?
Thanks,
Greg
Posted: Fri Sep 05, 2003 3:59 pm
by TuffRR
I know a Sierra on 33's that spends all its time lying down. I assume you have at least the widetrack axles?
Posted: Fri Sep 05, 2003 4:02 pm
by greg
TuffRR wrote:I know a Sierra on 33's that spends all its time lying down. I assume you have at least the widetrack axles?
I presume that would belong to a certain Matt somebody?
Or perhaps someone else with a white softtop and yellow windscreen surround?
Yes, I have the w/t's - and i think my car's a bit lower than their's too
cheers
Posted: Fri Sep 05, 2003 4:28 pm
by Liam
I've got q78's on a sierra, but they're on danas with a spring over, CJ springs, body lift and i still had to cut the guards. unfotunately the car keeps donating bits of itself to science (r and d).
Posted: Fri Sep 05, 2003 4:40 pm
by greg
I had a good look at your car when it was down in Vic for the 4wd show thing earlier in the year - didn't realise the swampers were Q78's though...
I'm not too worried about the breakage factor with the axel setup - working on the theory that they will be "okay" since Mick is running a 36" tyre and only breaking things occaisionally...
Do you have any pics with your car stuffing a tyre up into the guard - i'm wondering about how much more room i'm going to need to make it fit in there.
thanks
Posted: Fri Sep 05, 2003 4:43 pm
by Damo
I'm thinking you're going to have to clear a bit more room under there Greg. How wide are Q78s again???
Posted: Fri Sep 05, 2003 4:47 pm
by redzook
get rid of the body lift an go
SPRING OVER 
Posted: Fri Sep 05, 2003 4:48 pm
by greg
Damo wrote:I'm thinking you're going to have to clear a bit more room under there Greg. How wide are Q78s again???
The interco site says:
Tread Width is 9.5, Carcass Width is 10.8.
My current tyres are 8 and 9.5.
Posted: Fri Sep 05, 2003 4:53 pm
by grimbo
the fact you don't have any inner guards up front is good, you may have to remove the inner rears. You might want a little more lift maybe get some custom springs made similar to the Old Man Emu rears but with about 1" more lift. You will have to drop your bump stops.
The good thing about you doing this is it will let me know what I have to do when i go 37s
and sidewinders
Posted: Fri Sep 05, 2003 5:06 pm
by greg
grimbo wrote:when i go 37s
and sidewinders
Newsflash - Grimbo throws a gauntlet for himself...
And exactly when will that be happening mate?
Dare i say that i will be putting bids on your widetrack CV's before anyone else does
Posted: Fri Sep 05, 2003 5:09 pm
by greg
redzook wrote:get rid of the body lift an go
SPRING OVER
Comon redzook - this is supposed to be tech talk - if you're going to be funny - get back into chit chat
Posted: Fri Sep 05, 2003 5:12 pm
by redzook
im givin you advice
Posted: Fri Sep 05, 2003 5:18 pm
by greg
redzook wrote:im givin you advice
I know mate - but if i wanted dodgey advice i'd just ask NAM via pm...
Posted: Fri Sep 05, 2003 5:19 pm
by grimbo
if I can sell the valiant and the HR for good prices and get a bit of sideline work confirmed and Brooke doesn't find out then I'm all sweet for the 37s and sidewinders
Posted: Fri Sep 05, 2003 5:19 pm
by ljxtreem
Posted: Fri Sep 05, 2003 5:22 pm
by greg
grimbo wrote:if I can sell the valiant and the HR for good prices and get a bit of sideline work confirmed and Brooke doesn't find out then I'm all sweet for the 37s and sidewinders
I understand - say no more say no more...
Posted: Fri Sep 05, 2003 5:23 pm
by greg
ljxtreem wrote:they will fit greg, you and i both know they will.
Hey Mock - i think it's time you did an introduction for yourself here rather than hiding with your little car in the background.
Posted: Fri Sep 05, 2003 5:24 pm
by ljxtreem
OH YES, come play with the big boys
Posted: Fri Sep 05, 2003 5:26 pm
by ljxtreem
i will, got to go out soon though, and i cant type fast.
I type like i drive,,,, slow...
Will soon though
Posted: Fri Sep 05, 2003 5:27 pm
by grimbo
It actually is a real goal I have for the Zuk. Just need to get a few other $$$$ out of the way first. But long term goals = 37s
Posted: Fri Sep 05, 2003 5:27 pm
by TuffRR
greg wrote:TuffRR wrote:I know a Sierra on 33's that spends all its time lying down. I assume you have at least the widetrack axles?
I presume that would belong to a certain Matt somebody?
Thats the one!
Posted: Fri Sep 05, 2003 5:29 pm
by ljxtreem
u just want bigger ones than me!!
He he
Posted: Fri Sep 05, 2003 5:30 pm
by greg
grimbo wrote:It actually is a real goal I have for the Zuk. Just need to get a few other $$$$ out of the way first. But long term goals = 37s
I presume you would be running them completely outside the guards then? because otherwise that picture would suggest that the front will not be doing much tucking?
Posted: Fri Sep 05, 2003 5:32 pm
by greg
TuffRR wrote:greg wrote:TuffRR wrote:I know a Sierra on 33's that spends all its time lying down. I assume you have at least the widetrack axles?
I presume that would belong to a certain Matt somebody?
Thats the one!
Yes i've heard a few of his stories... but his car is quite tall, narrow and hard sprung with the big shackles on it...
Posted: Fri Sep 05, 2003 5:39 pm
by grimbo
greg wrote:grimbo wrote:It actually is a real goal I have for the Zuk. Just need to get a few other $$$$ out of the way first. But long term goals = 37s
I presume you would be running them completely outside the guards then? because otherwise that picture would suggest that the front will not be doing much tucking?
Sort of the sidewinders are about 3" wider than w/ts and the axle wouldn't be as far forward
And Mick i thought you were going out
Posted: Fri Sep 05, 2003 5:41 pm
by grimbo
kinda like this do you mean
Posted: Fri Sep 05, 2003 5:44 pm
by greg
grimbo wrote:Sort of the sidewinders are about 3" wider than w/ts and the axle wouldn't be as far forward
I see - should be good...
But i'm still not thinking that the tyres are going to be out far enough - think you will need to narrow the grill and bonnet like the fancy rockcrawlers
Posted: Fri Sep 05, 2003 5:45 pm
by greg
grimbo wrote:kinda like this do you mean
kinda like that.
though it does look pretty wierd.
Posted: Fri Sep 05, 2003 6:26 pm
by MQ080
I put a set of Q78's on 6" with rims and they bagged out quite nicely...
they'll fit fine
Posted: Fri Sep 05, 2003 7:08 pm
by M&M Custom Engineerin
they will fit easy as.
i got 37 boggers on mine with no body lift, sprung over with perfectly flat springs ( well the fronts actually have a bit of negative arch in them now
)
just cut it.
The biggest problem will be the footwell. I have my diff moved forward 4 inches and i still had to cut the firewall nearly back to the door on the outside edge tapering into the body mount (slight body mount massaging with a hammer is also required)
Just fit them so we can laugh at you breaking cv's driving it down your driveway
LU