Best SYE for future tummy tuck
- Thread starter Astro
- Start date
Waggs
Member
Looks like we have the same plan for our TJs and they are both 2000 Saharas hahaha! I’m planning on doing a 4” lift also but the Savvy/Currie SA kit. Along with a 1.25” BL and 1” MM spacer. I wanted to add the Savvy’s modular under armor at the same time just so I don’t have to buy a new drive shaft in the future. I was also planning to install the JB conversions short shaft SYE because of the steep angle the tummy tuck will cause. I’m interested to see how your build comes along!
Waggs
Member
What other problems did you run into when installing the Savvy TT? I know that the JB conversion super short sye will help and also the Savvy tc shifter linkage. And some exhaust modification. I will be having adjustable control arms so it will be easier to set the pinion angle. Also a 1.25” BL and 1” MML. And is an angled track bar mount and adjustable track bar needed? Such as the JKS track bar? Is there anything else you recommend? I’m planning on the 4” Savvy/Currie lift btw.
I had a menagerie of problems, but I've also never seen anyone else experience the same problems. A tummy isn't a simple bolt on affair I've learned and you must expect some level of out-of-the-box thinking. I ended up having to do a ton of axle work to get everything to fit nicely and function. Yes, you will need an angled trackbar bracket. A tuck like Savvy's will rotate the axle back far enough that the chances of your trackbar contacting the gas tank skid are very high.
Waggs
Member
What other axle work did you have to do? Yeah I didn’t expect it to be an easy job. That’s why I’m doing my research about it all from people who have done the Savvy TT. Because I know other skid plates require different levels of work.
The only issue I remember is that I couldn’t get the “C” brackets to fit the frame. The reason was when I took off the factory side steps I put the bolts back in the holes on the frame.
Once I pulled those bolts out everything fit perfectly.
Match drilled the engine skid, no problems.
Waggs
Member
And you have an LJ correct? I wonder if the LJ vs Tj require different modifications that need to be done for the Savvy TT, based on the wheelbase.
Issues were driveline bind, ridiculous amounts of coil bind, shock bodies contacting springs, overextended shocks, trackbar contacting gas tank, diff contacting gas tank skid, misaligned bumps and no amount of control arm work would place the axle where I needed it.
Solution was shaving the axle, burning in new mounts clocked to a positon that allowed me to adjust the control arms that would place the axle where it needed to be, and moving frame side spring perches, A ton of work, but would definitely do it all over again. It was a big learning process for me and thankfully I had some very helpful and knowledgeable people that took their time to help me.
Hmmmm. I just ordered some Currie 4" springs. They may have to sit on the shelf for a while until I have a plan for all that to be figured out. I haven't noticed anything too bad with the 3" springs I have now.
That isn't exactly a job I want to take on in a parking lot with no one who has done it before and a welder hooked to a generator haha.
That isn't exactly a job I want to take on in a parking lot with no one who has done it before and a welder hooked to a generator haha.
Correct on the LJ, the differences should all be behind the skid.
Rear axle angle may come into play
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You surely didn’t have all those effects from the TT?
I suppose you would. I did mine using a RJ60 set up for my lift and TT height. Probably did make it easier on me.
I did. Previously with the 4" springs, AA SYE, and stock skid it all worked together. Once the tuck was installed the issues arose. Like I mentioned though, I've never seen another jeep experience the same issues. In the end, IIRC, I had about $1k of unexpected cost incurred due to the new supershort sye, lengthened driveshaft, and axle brackets.
If you had just swapped to a JB SS SYE originally instead of keeping the AA would you still have needed to rotate the axle brackets? I was hoping to get away with getting my 4" springs installed, maybe chopping the axle side spring perches a bit, and doing the relocating the frame side spring perches at a later date.
I'm assuming you ran the tuck with the AA for a bit before swapping to the JB?
I'm assuming you ran the tuck with the AA for a bit before swapping to the JB?
Yes, the brackets needed to be addressed. The control arms were extended that the amount of shank was just a couple of threads. The others wouldnt collapse short enough. Dont let my experience scare you from installing your springs.
Once it was all fixed the driveshaft was binding just barely. I ran with just the front driveshaft until the JB came in which was a week or so.
Hmmm, we have fairly similar setups so I'm thinking I might run into that problem. I'll have to see where my control arms sit right now. Would be a bit of show stopper for me right now but it would be pretty easy to swap springs back and just go back to what I currently run.
I'm surprised other people wouldn't have this issue, especially 241 owners since that case is a fair bit longer than a SS SYE'd 231.
Waggs
Member
This is where "every jeep is different" comes into play. Install them, I think your chances of success are high. Mike, the guy with the black TJ that joined us on Holy Cross did the same thing when he installed a 241 and a rokmen skid.
Correct. We did all the work with the intention of reusing the AA sye. But at full droop there was the slightest catch in the rotation of the driveshaft. A limit strap could have worked as well, but the JB sye and a longer driveshaft was more appealing to me.