GI Service Center

GI Service Center We specialize in Duramax diesel customization and repair. No job is too big for us to handle!

2016 Ram in for a Tater Built Turbochargers and Fleece Performance Engineering turbo drain line.
07/15/2025

2016 Ram in for a Tater Built Turbochargers and Fleece Performance Engineering turbo drain line.

Little sneak peak of the current project we have going for a customer 👀
06/22/2025

Little sneak peak of the current project we have going for a customer 👀

2018 L5P in the shop with a cracked water jacket (video in comments). New short block got the customer back up and runni...
06/21/2025

2018 L5P in the shop with a cracked water jacket (video in comments). New short block got the customer back up and running. Also added some S&S Diesel 100% over injectors while we had everything apart

LML in the shop for Wehrli Custom billet manifolds, up-pipes and Calibrated Power Stealth 64mm turbo
06/19/2025

LML in the shop for Wehrli Custom billet manifolds, up-pipes and Calibrated Power Stealth 64mm turbo

LML came all the way from Texas for a hybrid long block. New fluid dampener should hopefully prevent crankshaft damage o...
06/13/2025

LML came all the way from Texas for a hybrid long block. New fluid dampener should hopefully prevent crankshaft damage on the new engine. Also installed an Exergy Performance CP3 and Screamin Diesel Performance install kit while we had everything apart

Local customer in the shop for some oil leaks, new upper and lower pan got this F450 sealed back up and back on the road
06/10/2025

Local customer in the shop for some oil leaks, new upper and lower pan got this F450 sealed back up and back on the road

Local customer in the shop last week for a leaking exhaust manifold. New BD Performance manifolds got this truck back on...
06/07/2025

Local customer in the shop last week for a leaking exhaust manifold. New BD Performance manifolds got this truck back on the road

2018 L5P in the shop for a Stealth 64mm drop-in turbo and Wehrli Custom Fabrication 750 transmission
05/22/2025

2018 L5P in the shop for a Stealth 64mm drop-in turbo and Wehrli Custom Fabrication 750 transmission

New shop truck out getting some test miles this week. 2019 Kodiak stretched by LB Customs. Front and rear air ride suspe...
05/15/2025

New shop truck out getting some test miles this week. 2019 Kodiak stretched by LB Customs. Front and rear air ride suspension from Kelderman Manufacturing. Rear suspension modified to accommodate the longer cab, we essentially lengthened the wheelbase by 15 inches. 24 inch Ruthless Forged wheels with custom floating caps wrapped in 38 inch Nitto Ridge Grapplers. Custom Shifted Industries spacers to keep the duals spaced properly. Hauler bed and skirted steps built by Utility Bodywerks, custom brackets made in-house to hide the air tanks nicely behind the steps. Road Armor front bumper fitted with RIGID Industries lights. I’m sure I am forgetting something on this build, it’s been years in progress

Another Firepunk Diesel Golden Nugget going in a L5P this week
05/14/2025

Another Firepunk Diesel Golden Nugget going in a L5P this week

Single cab dually in the shop this morning for some PPEI TCM tuning
05/09/2025

Single cab dually in the shop this morning for some PPEI TCM tuning

2017 Powerstroke in last week for a leaking upper oil pan. Figured out that the pan itself was warped and causing the le...
04/29/2025

2017 Powerstroke in last week for a leaking upper oil pan. Figured out that the pan itself was warped and causing the leak. New OEM pans got the engine sealed back up nicely. Customer decided to upgrade some other parts while we had his truck apart. S&S Diesel DCR conversion and a KC Turbos stage 1 turbo got this truck running like a top

Address

141 W North Street
Spencerville, OH
45887

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Website

Alerts

Be the first to know and let us send you an email when GI Service Center posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to GI Service Center:

Shortcuts

Share

Category