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Toyota W58 transmission

Ozzsp250
Posts: 184
Joined: Tue Feb 16, 2016 12:35 am
Location: Arizona, USA

Toyota W58 transmission

Post by Ozzsp250 » Sun Aug 25, 2019 10:06 pm

Anyone that has installed a Toyota W58 5 speed transmission in their SP250 have information or sources for a new driveshaft needed to complete conversion?

Thanks.

daimlersteve
Posts: 343
Joined: Wed Mar 09, 2016 11:20 am

Re: Toyota W58 transmission

Post by daimlersteve » Mon Aug 26, 2019 12:40 am

g'day,
its no problem to do, recommend a new yoke (aftermarket ) . back past that depends on the back end for the rear universal . If staying with the std SP d/shaft size there may be a need to reduce the front universal boss to that diam. Take care if going to a much larger dia as it gets close to the tunnel at the rear especially if you've got seat belt mount re-enforcing plates down there. Mine has a falcon back end so would be a different length and rear universal to yours.
cheers . Local cost for a complete new unit is around a grand .
Steve

Ozzsp250
Posts: 184
Joined: Tue Feb 16, 2016 12:35 am
Location: Arizona, USA

Re: Toyota W58 transmission

Post by Ozzsp250 » Mon Aug 26, 2019 2:13 am

Thanks for that Steve,

My thought process was new Toyota transmission output coupling - sliding spline and new universal joint and on rear stay with original size but new sealed bearing universal joint. I know I can get an aluminum or steel fabricated not sure any advantage or real weight saving involved.

I'll be in Auckland early Feb New Year and would sure like the opportunity to see your car / workshop if that could be arranged.

daimlersteve
Posts: 343
Joined: Wed Mar 09, 2016 11:20 am

Re: Toyota W58 transmission

Post by daimlersteve » Mon Aug 26, 2019 3:16 am

Yep , catchup no problem .
Stay with the steel . The alloy will always be bigger ( clearance at rear of tunnel situation )
Steve

daimlersteve
Posts: 343
Joined: Wed Mar 09, 2016 11:20 am

Re: Toyota W58 transmission

Post by daimlersteve » Mon Aug 26, 2019 3:26 am

Just as an aside ---- were you away that the timing chain for the SP is readily available as a Rollmaster in aust. Common to just about all big block US V8s . High quality German IWIS pre-stretched chain . Just installed one when i changed the cam. about to install the same cam profile in the 2.8 MTR and Dial in @ 104.5 as in the recent change --- Seems to work .

Steve

daimlersteve
Posts: 343
Joined: Wed Mar 09, 2016 11:20 am

Re: Toyota W58 transmission

Post by daimlersteve » Mon Aug 26, 2019 3:27 am

Oops -- should read ' aware "

User avatar
John-B
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Re: Toyota W58 transmission

Post by John-B » Mon Aug 26, 2019 6:11 am

daimlersteve wrote:
Mon Aug 26, 2019 3:27 am
Oops -- should read ' aware "
[You can edit your own posts, you know! Use the pencil icon top right of your post. - John-B]

Ozzsp250
Posts: 184
Joined: Tue Feb 16, 2016 12:35 am
Location: Arizona, USA

Re: Toyota W58 transmission

Post by Ozzsp250 » Mon Aug 26, 2019 4:01 pm

Steve,
Thanks for that info on the timing chains. I now have the 'new' engine in the car and the car's original engine on my test stand. The original engine has the left head gasket failed / corroded I believe but have two overhauled heads with new valves, springs and guides assembled on the shelf. I plan to complete the car before working on the original engine but with the temperature 36 C and above in my garage progress will be slow.

daimlersteve
Posts: 343
Joined: Wed Mar 09, 2016 11:20 am

Re: Toyota W58 transmission

Post by daimlersteve » Tue Aug 27, 2019 6:15 am

ouch, anything above 26 is uncomfortable .
cheers

Ozzsp250
Posts: 184
Joined: Tue Feb 16, 2016 12:35 am
Location: Arizona, USA

Re: Toyota W58 transmission

Post by Ozzsp250 » Fri Sep 06, 2019 3:59 am

Steve,

Picked up my new steel driveshaft today and installed it in the car..........cost was only $265. All new made with 1310 series universal joints the rear one being hi-angle. Only change is the bolts need to be 3/8" longer due to thickness of rear universal flange.

Unfortunately have misplaced a piece of the accelerator linkage with inspect my storage and dis-assembly bins in the morning. I'll have a few days away from the garage as have visitors from Oz and NZ for the next week, which my be a blessing as temps are schedule to drop below 38C next week.

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