Breaking 3550's? - Page 2

Dale McPeters · 05-11-2006, 11:01 AM

If it is like the 3550 that I have just convert it to a 26 spline input
and a 31 spline output and you should not have to many problems.
The tailshaft housing will need to be bored out also.
Bob at Hanlon motorsports has these parts at a reasonable price.

LeeH · 05-11-2006, 09:28 PM

Believe it or not the majority of 3550 failures are due to the mainshaft either twisting or breaking in or near the splines in the tail housing.

Hey Dale how about building a blow through turbo set up on the Capri?

Dale McPeters · 05-12-2006, 12:58 PM

Quote:

Originally Posted by LeeH

Hey Dale how about building a blow through turbo set up on the Capri?

Dust off that old rusty turbo......

LeeH · 05-12-2006, 08:18 PM

Quote:

Originally Posted by Dale McPeters

Dust off that old rusty turbo......

Hehehehe

nxcoupe · 05-25-2006, 09:20 PM

I have broken a 3550 input shaft once. Spec Stage 3(David has it somewhere at Spec, it was still stuck in the disk when I sent it to him). I was running 9.90's with 300 shot on a 306, 28 X 10 slicks. I was going into 3rd when the input broke. I never broke a gear in my 3550, after two seasons running 9's and 10.0's. I don't think that qualifies as luck. I replaced it with a TKO input(I have an extra that is new if you are interested), as all the gears in an old TKO and 3550 are the same.
I went 9.70's with the TKO input and the 3550 internals. It was a reliable trans that worked for two years no problems, hundreds of passes. A great idea would be for you to use a Swarr Girdle, they are 129, work wonders for the thing to keep the input and countershaft from pushing apart and I attribute this to my two years of no problems.

05-11-2006, 11:01 AM	#11
Dale McPeters 5.0 Block/Walnut Cracker Join Date: May 2005 Location: Working.... Posts: 2,409	Re: Breaking 3550's? If it is like the 3550 that I have just convert it to a 26 spline input and a 31 spline output and you should not have to many problems. The tailshaft housing will need to be bored out also. Bob at Hanlon motorsports has these parts at a reasonable price.

05-11-2006, 09:28 PM	#12
LeeH Senior Member Join Date: Dec 2005 Location: The conservative underground Posts: 341	Re: Breaking 3550's? Believe it or not the majority of 3550 failures are due to the mainshaft either twisting or breaking in or near the splines in the tail housing. Hey Dale how about building a blow through turbo set up on the Capri? __________________ 89LX Hatch 89LX Coupe 89GT 90GT 93GT

05-25-2006, 09:20 PM	#15
nxcoupe Senior Member Join Date: Dec 2005 Location: Somewhere, Afghanistan Posts: 122	Re: Breaking 3550's? I have broken a 3550 input shaft once. Spec Stage 3(David has it somewhere at Spec, it was still stuck in the disk when I sent it to him). I was running 9.90's with 300 shot on a 306, 28 X 10 slicks. I was going into 3rd when the input broke. I never broke a gear in my 3550, after two seasons running 9's and 10.0's. I don't think that qualifies as luck. I replaced it with a TKO input(I have an extra that is new if you are interested), as all the gears in an old TKO and 3550 are the same. I went 9.70's with the TKO input and the 3550 internals. It was a reliable trans that worked for two years no problems, hundreds of passes. A great idea would be for you to use a Swarr Girdle, they are 129, work wonders for the thing to keep the input and countershaft from pushing apart and I attribute this to my two years of no problems. __________________ Michael 92 coupe R/S 8