Triumph Sports Cars

engine swaps and other performance upgrades, plus "factory" V8s (Stag and TR8)

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racetearoffs
Karl La Follette

(4 posts)

Registered:
10/24/2007 10:21AM

Main British Car:


Triumph stag rear end
Posted by: racetearoffs
Date: October 24, 2007 02:26PM

We are breaking a stag rear end and one side will not slip out to put new s eal in . Just wondering if anyone has done any work on a stag rear pumkin and or any thoughts on a 240 z retro fit for the stag . [s48.photobucket.com] .... 350 chevy tore it a new one


StagByTriumph
Glenn Merrell
Colorado
(37 posts)

Registered:
10/25/2007 12:11PM

Main British Car:
1973 Stag Rover SD1 3.5 w/ 3.9 EFI

authors avatar
Re: Triumph stag rear end
Posted by: StagByTriumph
Date: October 25, 2007 12:46PM

If you want a diff and axles that will hold up to a Chevy 350, get a BMW series 3 (correct wheel base width) or series5 diff and axles (wider, need more modification). This will allow you to take the horsepower, gives you limited slip, gives you CV joint axles, and 5 bolt wheels with disk rear brakes. BMW stuff is more bullet proof and plentiful than older and rare 240 Z stuff.

The whole rear suspension is close enough that it can be adapted probably easier than what it took to chop and slop that 350 into the Stag.

Have a look for ideas at Jonathan Finnis company, Monarch at [www.monarch-stags.co.uk]
or
Richard Lane's Company, Brighton Stag Specialists at [www.users.globalnet.co.uk]

If the Stag side stub axles do not come out, the bearings or splines may be tweaked from the horsepower. Use a slide hammer after you remove the 4 bolts.

Glenn
"the BEST Trophies are: Miles on the Odometer, Stone Chips in the paint, and DEAD BUGS on the windhsield!"


StagByTriumph
Glenn Merrell
Colorado
(37 posts)

Registered:
10/25/2007 12:11PM

Main British Car:
1973 Stag Rover SD1 3.5 w/ 3.9 EFI

authors avatar
Re: Triumph stag rear end
Posted by: StagByTriumph
Date: October 25, 2007 01:17PM

racetearoffs Wrote:
-------------------------------------------------------
> We are breaking a stag rear end and one
> side will not slip out to put new s eal in .
> Just wondering if anyone has done any work
> on a stag rear pumkin and or any thoughts
> on a 240 z retro fit for the stag .
> [s48.photobucket.com]
> s/?action=view¤t=IMG_0435.jpg .... 350
> chevy tore it a new one

Ah HAA!!!

After looking at your photos, yes, I understand you you mean about "breaking" a Stag rear end.

You are an "Evil Racer!!"

Okay, if you are going to do that, your front diff extension is called a quill shaft. That housing tube between the sub frame and the front of the diff breaks at the weld to the tube flange. Also the quill shaft splines that mate to the differential pinion nose gear will strip out under large horse power application.

It is not designed for all that American torque.

BTW, that Stag looks to be in fairly good shape. Got more photos??

Definitely look up a BMW 3 series setup. This eliminates the quill shaft and diff nose extension, plus all the other stuff that will cause you nothing but trouble on the track.

Actually if you want to race a Stag, consider this one ... [www.staggering.info]
http://www.staggering.info/users/www.staggering.info/upload/st2.jpg
http://www.staggering.info/users/www.staggering.info/upload/P5310009.JPG
or this one
http://www.users.globalnet.co.uk/~stag1/Resources/supercarsidecutoa.jpeg

Glenn
"the BEST Trophies are: Miles on the Odometer, Stone Chips in the paint, and DEAD BUGS on the windhsield!"



Edited 1 time(s). Last edit at 10/25/2007 01:20PM by StagByTriumph.


racetearoffs
Karl La Follette

(4 posts)

Registered:
10/24/2007 10:21AM

Main British Car:


Re: Triumph stag rear end
Posted by: racetearoffs
Date: October 25, 2007 03:55PM

[fastpitstops.com] my site here has alot of stag fotos . I ran it in last years Grassroots motorsports challenge and pulled a 13.3 in the 1/4 mile . The 500 burnouts since then has spent the rear . Luckily did have a spare car to donate a rear . We did weld the quill shaft at the breaking point on the new one but I cannot get the >>oil screw side << to let me put new seals in it to come loose . I have a call into Stag specialists and am waiting to hear back as I would not mind getting some new parts /used for the rear . I have a crap load of Datsun s just have not looked under them yet . I am think ing the turbo datsun finned rear end . But I wish I would have just put in the used rear end that leaked a clittle ,, it was out of wire wheel car some how much damage / burnouts could the original motor taken . .


StagByTriumph
Glenn Merrell
Colorado
(37 posts)

Registered:
10/25/2007 12:11PM

Main British Car:
1973 Stag Rover SD1 3.5 w/ 3.9 EFI

authors avatar
Re: Triumph stag rear end
Posted by: StagByTriumph
Date: October 27, 2007 03:56PM

Where are you located Karl? That Stag looks like one that was for sale in Ocala Florida a while back.

I have a member in Merritt Island who has, I think, two diffs.

BTW, I can only get to two photos on your site. What am I missing to locate the others?


racetearoffs
Karl La Follette

(4 posts)

Registered:
10/24/2007 10:21AM

Main British Car:


Re: Triumph stag rear end
Posted by: racetearoffs
Date: October 29, 2007 10:50AM

Hey yes it was in Ocala it was owned by a guy in the printing business I think his last name is Lewis . Goto www.fastpitstops.com and click on Galleries and then swoop over the piks and it should roll to see more fotos , it does take a little bit of finess . I have got a call into stag specialists for a splined side shaft . How much for a differential if its available I would like to have a spare until I figure out how to 240 Z retrofit . The guy that I got it from was super nice I bought it on the spot , I had sold a stag years earlier and regretted it but it was rusty and original engine . This car is solid and I aint parting with it so spare rear end might be in order . The pik swoop over is in the middle below the pisture that loads , there is couple piks of my MGA coupe and Meyers Manx dune buggy , plus some other stuff . The Mazda shop is Speed Source in FT . Lauderdale .



Edited 1 time(s). Last edit at 10/29/2007 10:55AM by racetearoffs.


StagByTriumph
Glenn Merrell
Colorado
(37 posts)

Registered:
10/25/2007 12:11PM

Main British Car:
1973 Stag Rover SD1 3.5 w/ 3.9 EFI

authors avatar
Re: Triumph stag rear end
Posted by: StagByTriumph
Date: October 31, 2007 11:27PM

I thought that Stag looked familiar. So the transmission tunnel is custom fabricated and it has no heater, right? Yeah, I remember that one, looked to be a really sweet conversion needing some finer touches to make it complete.
So Stag Specialists eh? Have you purchased parts from Walter before?

I'll get an email or phone call off to my friend to see if he still has the diffs. If you don't hear from me in a week, remind me again to call him.

Keep you eye out for OE Triumph V8's. A lot of my members are looking for parts adn whole engines to convert back.

My Goal: Build and dyno a 300 bhp engine using the original Triumph OHC V8.



racetearoffs
Karl La Follette

(4 posts)

Registered:
10/24/2007 10:21AM

Main British Car:


Re: Triumph stag rear end
Posted by: racetearoffs
Date: December 27, 2007 06:01PM

Just got the stag off the lift and was able to drive it . Newly refurbished rear end . Thanks to Stag specialists they came thru with some much needed parts . Will post a link with photos soon . Heres some work I have been doing on y MGA and a new Midget project [s48.photobucket.com] the midget >>>>> [s271.photobucket.com]


Moderator
Curtis Jacobson
Portland Oregon
(4576 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: Triumph stag rear end
Posted by: Moderator
Date: December 27, 2007 06:35PM

Cool, but why post links to Photobucket when it's so easy to upload images directly to this site?

We don't have pop-up ads, and it's much easier to caption your photos here.


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