This ribcase transmission comes with a modified front cover and an upgraded seal.
NOTE: If exchanging smoothcase to a ribcase, the shift lever is different. You will need a ribcase shift lever part number: U-22G1397.
(Remember: it runs straight SAE 30 weight motor oil for lubrication- not gear oil)
The ribcase gearbox is the strongest of boxes for the Sprite, Midget and Morris Minors application and can be one of the most dependable parts of your car. These boxes use real bearings in all the critical places (in contrast to the 'smooth case' box that uses simply bushes).
The ribcase is a direct replacement for the smooth case of old and will provide a much improved gear ratio set. The first gear is taller and thus much more comfortable and usable to drive.
And stop believing that every ribcase will pop out of second gear! We believe the reputation of the Spridget gearbox has been severely hurt by rebuilders that don't know how to do it right!
All of our gearboxes are built in house! We even disassemble those we might buy as rebuilt from the UK and FIX them right! They are Guaranteed to be good and we promise, THEY WILL NOT POP OUT OF SECOND GEAR!
These are sold with a core charge to ensure our supply of ribcases to rebuild. You might also consider our rebuilding service if you have the time. The standard service requires that you send us your gearbox (easily shipped by UPS), we do a complete inspection and provide a quote for rebuilding it.
Returned Core must be Ribcase to qualify.
Need Your Spridget Ribcase Transmission Rebuilt?
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
The 1098 engines on the Sprites always had a ribcase from the factory - only the 948cc engines used the earlier smoothcase. So, the ribcase will mount to the 1275 with no issues since it didn't change when the 1275 came along. The only exception to this is that the release fork and release bearing do need to be the 1275cc type as the 1098 type was different. The flywheel for the 1098 and the 1275 are not interchangeable since the 1098 had a 4-bolt flywheel and the 1275's are a 6-bolt flywheel. The 1275's use the 1275 type clutches.
If you get a full 1275 clutch kit, it will come with the appropriate release bearing.
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
Spridget Mania Tech Team
The Spridget Mania Parts and Accessories Experts
This will have a core charge with it so returning yours would not be practical.
ETA currently is apx. 6-10 weeks out, and could be longer.
You can place an order on the website if you like and we will get a shipping quote for you before we process the order.
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
We can sell you a transmission outright, but you would have to pay for the core charge as well. Returning yours would cost more than it is worth most likely. Let me work up a shipping quote and I will get b ack to you in a few days. We will also need to know if it is a LHD or RHD. if you do decide to purchase one.
thanks,
This ribcase transmission comes with a modified front cover and an upgraded seal.
NOTE: If exchanging smoothcase to a ribcase, the shift lever is different. You will need a ribcase shift lever part number: U-22G1397.
(Remember: it runs straight SAE 30 weight motor oil for lubrication- not gear oil)
The ribcase gearbox is the strongest of boxes for the Sprite, Midget and Morris Minors application and can be one of the most dependable parts of your car. These boxes use real bearings in all the critical places (in contrast to the 'smooth case' box that uses simply bushes).
The ribcase is a direct replacement for the smooth case of old and will provide a much improved gear ratio set. The first gear is taller and thus much more comfortable and usable to drive.
And stop believing that every ribcase will pop out of second gear! We believe the reputation of the Spridget gearbox has been severely hurt by rebuilders that don't know how to do it right!
All of our gearboxes are built in house! We even disassemble those we might buy as rebuilt from the UK and FIX them right! They are Guaranteed to be good and we promise, THEY WILL NOT POP OUT OF SECOND GEAR!
These are sold with a core charge to ensure our supply of ribcases to rebuild. You might also consider our rebuilding service if you have the time. The standard service requires that you send us your gearbox (easily shipped by UPS), we do a complete inspection and provide a quote for rebuilding it.
Returned Core must be Ribcase to qualify.
Need Your Spridget Ribcase Transmission Rebuilt?
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
The 1098 engines on the Sprites always had a ribcase from the factory - only the 948cc engines used the earlier smoothcase. So, the ribcase will mount to the 1275 with no issues since it didn't change when the 1275 came along. The only exception to this is that the release fork and release bearing do need to be the 1275cc type as the 1098 type was different. The flywheel for the 1098 and the 1275 are not interchangeable since the 1098 had a 4-bolt flywheel and the 1275's are a 6-bolt flywheel. The 1275's use the 1275 type clutches.
If you get a full 1275 clutch kit, it will come with the appropriate release bearing.
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
Spridget Mania Tech Team
The Spridget Mania Parts and Accessories Experts
This will have a core charge with it so returning yours would not be practical.
ETA currently is apx. 6-10 weeks out, and could be longer.
You can place an order on the website if you like and we will get a shipping quote for you before we process the order.
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
We can sell you a transmission outright, but you would have to pay for the core charge as well. Returning yours would cost more than it is worth most likely. Let me work up a shipping quote and I will get b ack to you in a few days. We will also need to know if it is a LHD or RHD. if you do decide to purchase one.
thanks,

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