GT 380 Shock Absorbers

General discussion about Street two-stroke Suzuki motorcycles.

Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan

Post Reply
grumpy56
To the on ramp
Posts: 218
Joined: Thu Nov 20, 2014 11:08 pm
Country: USA
Suzuki 2-Strokes: 1970 T350 Restored; 1972 GT380 Build
Location: Yorba Linda, CA

GT 380 Shock Absorbers

Post by grumpy56 »

Can GT380 shocks be disassembled? Rebuild if needed and re-chromed?

Thanks.
User avatar
Alan H
Moto GP
Posts: 3250
Joined: Thu Feb 16, 2012 11:50 am
Country: England
Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
Location: The Republic of South Yorkshire

Re: GT 380 Shock Absorbers

Post by Alan H »

Not completely. You need some spring compressers, then take the collets off and slowly release the compressers. Be very careful as there's a lot of energy in those springs.
TBH though, you're better off with new. You're messing about with very old kit and the damping part is probably shot anyway.
A set of Hagons on my bikes transformed the handling.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
grumpy56
To the on ramp
Posts: 218
Joined: Thu Nov 20, 2014 11:08 pm
Country: USA
Suzuki 2-Strokes: 1970 T350 Restored; 1972 GT380 Build
Location: Yorba Linda, CA

Re: GT 380 Shock Absorbers

Post by grumpy56 »

Thanks Alan. I see that some repro units are available. Do you (or anyone else) know what the length of the top cover is on a 1972 version? I see various sizes, but would like to get one that looks like the original 1972 version.
User avatar
Alan H
Moto GP
Posts: 3250
Joined: Thu Feb 16, 2012 11:50 am
Country: England
Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
Location: The Republic of South Yorkshire

Re: GT 380 Shock Absorbers

Post by Alan H »

The repro ones on my 550J are 100mm or 4" in old money!
Think of how stupid the average person is, then realise that half of them are more stupid than that.
grumpy56
To the on ramp
Posts: 218
Joined: Thu Nov 20, 2014 11:08 pm
Country: USA
Suzuki 2-Strokes: 1970 T350 Restored; 1972 GT380 Build
Location: Yorba Linda, CA

Re: GT 380 Shock Absorbers

Post by grumpy56 »

Thank you!
alanr
To the on ramp
Posts: 260
Joined: Sat Jan 29, 2011 10:51 pm
Location: New Zealand

Re: GT 380 Shock Absorbers

Post by alanr »

be aware when you buy,eye to eye is 11 1/2 inches.I am buying for a GT250 frame which are the same length.a lot are offering 12 inch which are not correct.
CB360T
TT250
grumpy56
To the on ramp
Posts: 218
Joined: Thu Nov 20, 2014 11:08 pm
Country: USA
Suzuki 2-Strokes: 1970 T350 Restored; 1972 GT380 Build
Location: Yorba Linda, CA

Re: GT 380 Shock Absorbers

Post by grumpy56 »

The ones I was looking at are 12 inches eye to eye.

https://www.ebay.com/itm/Suzuki-GT380-N ... 1438.l2649" onclick="window.open(this.href);return false;

Do you have a source for the 11.5 inch?
User avatar
Alan H
Moto GP
Posts: 3250
Joined: Thu Feb 16, 2012 11:50 am
Country: England
Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
Location: The Republic of South Yorkshire

Re: GT 380 Shock Absorbers

Post by Alan H »

Too short, the silencers will ground on bends.
I'll measure the ones on mine, but I think they're 13".
Think of how stupid the average person is, then realise that half of them are more stupid than that.
alanr
To the on ramp
Posts: 260
Joined: Sat Jan 29, 2011 10:51 pm
Location: New Zealand

Re: GT 380 Shock Absorbers

Post by alanr »

If you measure your old ones to check.l was almost fooled by the 12 inch.l took the 12 inch off my t350 and found too long for the gt250 frame.l have sourced 11 1/2 inch for $100 pair but not with shroud.if the 12 or even12 1/2 fits and you're happy go with it.
CB360T
TT250
dollydog
Yeah Man, the Interstate
Posts: 633
Joined: Fri Aug 11, 2017 7:09 am
Country: england
Suzuki 2-Strokes: several gt250 ramairs

Re: GT 380 Shock Absorbers

Post by dollydog »

gt250 rear shocks are 300mm, which to be pedantic is about 11.8" :D
cheers, dd.
GTS250 road registered. TS250 engine, Ramair frame.
GT250 big bang road registered. Both pistons fire the same time. USD forks.
GT285 road registered. Overbored - 58mm and TS125 +2 pistons fitted.
GT10 road registered. '65 T10 engine, GT250 frame.
grumpy56
To the on ramp
Posts: 218
Joined: Thu Nov 20, 2014 11:08 pm
Country: USA
Suzuki 2-Strokes: 1970 T350 Restored; 1972 GT380 Build
Location: Yorba Linda, CA

Re: GT 380 Shock Absorbers

Post by grumpy56 »

Thank you boys. The shocks on my T350 without a shroud are 12 inches. It appears from folks selling used ones on ebay and who provide a tape measure in the that 12 inches appears about right (eye to eye). I suppose I will try that. Lot of stuff to keep this old boy busy since I have nothing else to do!!!!!
Post Reply