20 replies to this topic

[dattoman]

And A9X race cars
And plenty of BB Vettes

I've looked at them too... but don't need one to commit yet

[76lxhatch]

You can also get complete new Muncies with various improvements, they have Italian made gearsets with the shallower/stronger tooth angle in both wide and close ratios:
http://www.tbtrans.c...cie_4_speed.htm
(also other suppliers like Autogear)

Much the same price, fitment and strength as a Super T10, but the Super T10 has more wide ratio options so I guess it depends on what ratios you want. None of these boxes really have torque ratings but they tend to handle a lot, haven't heard of any breakages that aren't due to a lot of abuse or serious big block torque.

[unclefestal34s]

i've been using 2nd super T10 boxes for well over 25 years,..i've had them in tuff small blocks and big block chevy's as well as my street driven L34 355 holden stroker which makes 450hp 440 foot pounds of torque..they are great gearboxes and take a hell of a lot of punishment..the new richmond casing ones are even more sturdy as the casing are little thicker..just be sure when buying you don't get caught out as some do with the early T10s which are 10 spline and 27 rear same as early muncies and aussie 4speeds..also some super T10S have 26 spline front and 27 rear and are alloy case..
Super T10s 2nd designs are 26 spline front and 32 rear same as turbo 400..they come in front cast case as well as full case..they all have alloy rear extension housings..they have a good selection of ratios 2.43 2 rings on front input shaft,..3 rings 2.64,.5 rings 2.88 etc..
these boxes like any other boxes will break from general wear and fatigue,..but from my experience i've seen them break from poor maintence from loose extension housing bolts and not enough gear oil them etc..

[TerrA LX]

IIRC they ran a super T10 in Bob Janes big block Camaro.......

From what Bob says in his docco with the car on rebuild he reckons that they made their own box out of plate steel when they kept blowing up the muncie.

Edited by TerrA LX, 18 March 2012 - 07:20 PM.

[76lxhatch]

Yeah apparently the original cases can stretch under severe duty so they replaced it with a custom made steel one - the new super cases are still aluminium but have been suitably reinforced in the "weak" areas

[unclefestal34s]

the early T10s came out in the early 60s and are on par with a saginaw which were pretty average at best..especially now with there age most would be flog out unless have been rebuilt with new gears as such..mate syick with a borg warner super T10 or muncie fine spline rockcrusher as you can buy them with new cases and gearsets..

[enderwigginau]

You can also get complete new Muncies with various improvements, they have Italian made gearsets with the shallower/stronger tooth angle in both wide and close ratios:
http://www.tbtrans.com/muncie_4_speed.htm
(also other suppliers like Autogear)

Much the same price, fitment and strength as a Super T10, but the Super T10 has more wide ratio options so I guess it depends on what ratios you want. None of these boxes really have torque ratings but they tend to handle a lot, haven't heard of any breakages that aren't due to a lot of abuse or serious big block torque.

If you can get gears NOT made in Italy you're probably onto something.......

[ozyozyozy]

I broke my super t10 twice behind a 308, they do cope with a lot of punishment but they do have a weekness.
There are no needle rollers under the gears againest the mainshaft, so they can loose lubrication and pick up metal and seize on.
Also the washer and needle roller between input and mainshaft fails, causing both shafts to weld together.
Like aussie's the shifter needs to be adjusted correctly.

[yel327]

IIRC they ran a super T10 in Bob Janes big block Camaro.......

M22 Muncie. This is the box you want with a big torque and horsepower engine. You can still smash them with a big block, as Bob Jane managed but steel end plates solves this which you get with the improved new boxes now. Remember Bob Jane was running a full race spec ZL-1 427 with massive slicks, you are probably talking 600+hp and 600+ftlb torque. GM stopped using these boxes once they stopped building big hp and big torque cars hence why they went back to the improved "Super" T10 which was by that time built by Borg Warner. All said there is nothing wrong with either behind a small block, especially in a tiny little car like an LJ!

[Rainman]

Hello Members, hope you are getting your cars out in this lovely weather. About two months ago my super T 10 lost first gear. If I got under the car, I could get it into first (engine not running). When I started it, the gear would not come out of first. Today I left my driveway in second, get down the road and now it goes into first really smoothly but doesn't go into second. Thinking it could be the oil needing changed, but that's just a guess. Anyone think I could be right or could it be something more major? Thanks for any replies. Rainman

[ozyozyozy]

🤔 there is a bearing and washer between the input shaft and mainshaft, inside 4th, the washer can shit itself and the bearing too, when the washer does tho, the mainshaft can float forward and back, make it hard to get gears.
This is a possibility

[Rainman]

Thanks ozyozyozy, will drop the box in the near future, will advise once it's fixed. Cheers Rainman. Ps the long shift feels great.

[76lxhatch]

From your description it could also just be the shifter or 1-2 rod is loose/moved

[Rainman]

Thanks 76lxhatch, have been under the car and it looked all good. The long shift have threaded adjusters with a lock off nut. They were all tight and no real play. Rainman

[Rainman]

I wonder what gears I get today lol. First to third sux lol. Rainman

[Heath]

^ lol. Manual allsorts.

[Rainman]

Yesterday I had all gears for a little while. Then it went back to no first gear. Swaps and changes as I drive. Rainman